Technical checklists

Precast requirement checklists for real technical review.

Choose a scenario, prepare the key parameters and upload the right files. These checklists turn early project notes into information a precast technical team can understand in the first round.

1Choose scenario

Factory, production line, mold, finished product, troubleshooting or automation.

2Fill key fields

Product range, standard, capacity, dimensions and drawing status.

3Upload evidence

Drawings, photos, schedules, test records or supplier proposals.

4Get next step

PRECAST.WORLD reviews the context through the technical desk.

Wall panel production line requirement checklist Hollow core slab production requirement checklist Concrete pipe and manhole production requirement checklist Spun pile production requirement checklist Magnetic shuttering and formwork magnet requirement checklist New precast factory setup requirement checklist Finished precast product technical requirement checklist Production quality troubleshooting brief Factory automation, MES and BIM workflow brief

Technical boundary

Use these checklists before any serious technical discussion

A useful technical request should define product scope, local responsibilities, evidence, assumptions and acceptance criteria. Thin discussions are weak when drawings, capacity basis, standards and exclusions are unclear.

Requirement checklist

Wall panel production line requirement checklist

For technical comparison of table-based wall panel lines, tilting tables, pallet circulation systems and automated wall factories.

Use this checklist

Best for

New wall panel factory planning
Upgrade from manual table casting
Comparing semi-automatic and automated circulation concepts

Fields to prepare

Target wall panel productsRequired
Separate solid wall, sandwich wall, double wall, facade panel and mixed production needs.
Solid partition panels and sandwich exterior wall panels
Daily output basisRequired
State the target square meters per day and shift pattern, not only annual sales target.
600 m2/day, one 9-hour shift
Maximum panel envelopeRequired
Give maximum length, height, thickness and lifting weight so tables, cranes and curing space can be checked.
7.2 m x 3.2 m x 200 mm, max 5.5 t
Automation expectationUseful
Explain whether the plant needs fixed tables, tilting tables, circulation pallets or MES/BIM connection.
Semi-automatic line now; MES can be phase two
Factory constraintsUseful
Share land, building span, crane coverage, curing method, utilities and storage route if already known.
24 m casting hall, 10 t overhead crane, outdoor storage yard

Files to upload

Sample panel drawings or scheduleRequired
PDF/DWG preferred; sketches are acceptable for early budget screening.
Plant layout or land dimensionsOptional
Needed for table quantity, crane coverage, curing area and storage flow.
Surface finish and insert examplesOptional
Openings, embeds, insulation and facade finish strongly affect station time.
Utility and crane dataOptional
Useful before confirming distributor, vibration, curing and lifting scope.

Project facts

Target products: solid wall, sandwich wall, double wall, facade panel or mixed product range.
Daily and annual output target in square meters, with realistic shift pattern.
Typical panel dimensions, maximum panel weight, insert density and opening complexity.
Available land, building span, crane coverage, curing space and storage route.

Technical scope to confirm

Provide station-by-station cycle time, bottleneck calculation and assumed labor count.
Separate included equipment, optional equipment, local project scope and civil works requirements.
State pallet/table quantity, curing method, concrete delivery method and lifting arrangement.
List commissioning days, operator training, spare parts and remote support model.

Proposal comparison risks

Peak output is stated without curing, cleaning, reinforcement or demolding constraints.
Automation is proposed before product repetition and design-data readiness are proven.
Installation, foundations, cranes, compressed air, heating and safety guarding are unclear.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Process layout	Concept layout, station list, material flow and cycle-time assumptions	Building dimensions, land constraints, crane plan and local utility limits	Scaled layout drawing with station capacity and bottleneck note
Equipment package	Tables or pallets, concrete distribution, vibration, curing and handling interfaces	Local cranes, foundations, utilities, safety approvals and installation labor	Included/excluded list with technical datasheets
Commissioning	Supervision, training plan, test production and acceptance procedure	Operators, raw materials, lifting gear, test molds and site readiness	Commissioning schedule and acceptance checklist

Production workflow sample

Wall panel production line sample workflow

A technically complete wall panel brief should connect drawings, BOM, mold/table planning, station balance, QC and delivery responsibilities before capacity is compared.

Capacity logic

Start with sellable panel area per day, then remove time for cleaning, reinforcement, embedded parts, casting, finishing, curing, demolding and transport.
Table or pallet count is controlled by curing cycle and product mix; a fast concrete distributor does not create output if curing or insert placement is the bottleneck.
Crane capacity must cover maximum panel weight, lifting beam, demolding angle, storage route and truck loading, not only nominal panel weight.

QC checks

Mold/table flatness and dimensional check before casting.
Reinforcement cover, embedded part position and lifting anchor layout before concrete.
Concrete workability, batch record, curing temperature and release strength before demolding.
Panel dimensions, diagonal tolerance, surface defects, edge damage and storage support after demolding.

Phase	Project/factory input	Technical output	Acceptance evidence
1. Drawing and product mix freeze	Panel schedule, sample drawings, wall types, thickness range, finishes, openings and embed examples.	Product family matrix and assumptions used for layout, table size and station balance.	Approved product matrix with max panel size, weight, inserts and finish classes.
2. BOM and embedded parts review	Rebar/mesh concept, lifting anchors, inserts, insulation, connectors, conduits and local standards.	BOM interface checklist and station-time allowance for reinforcement and embeds.	BOM checklist showing local/project-supplied and system-supplied items.
3. Mold/table and curing configuration	Required surface quality, panel repetition, curing target, available hall length and crane coverage.	Table or pallet quantity, shuttering package, curing method, distributor and vibration scope.	Layout drawing with table count, curing capacity, crane route and bottleneck note.
4. Production schedule and trial run	Target shift pattern, labor plan, raw material readiness and first sample product.	Trial production plan, commissioning days, operator roles and station cycle assumptions.	Trial-run record covering cycle time, panel dimensions, surface quality and release strength.
5. QC, storage and delivery handoff	Inspection standard, storage yard limits, transport route and site unloading conditions.	QC checklist, storage frame guidance, lifting/transport notes and responsibility split.	ITP-style checklist with dimensional, strength, surface, lifting and delivery checks.

Responsibility boundary

Supplier should state equipment, commissioning, training, spare parts and acceptance test scope.
Project team should state building, cranes, foundations, local utilities, raw materials, labor, standards approval and installation constraints.
Any local civil works, safety guarding, electrical connection, boiler/steam system or MES integration must be listed as included or excluded.

Technical starter text

We are planning a precast wall panel production line. Please provide a complete technical solution and separate included equipment, optional equipment, local project scope, installation/commissioning scope and first-year spare parts. Our target products are: [solid/sandwich/double/facade panels]. Target output is: [m2/day] on [shift pattern]. Maximum panel size and weight are: [dimensions/weight]. Please provide layout, cycle-time calculation, labor count, utility requirements, foundation loads, training plan and acceptance criteria.

Requirement checklist

Hollow core slab production requirement checklist

For comparing extruder, slipformer, casting beds, prestressing, saw, lifting and concrete-mix requirements.

Use this checklist

Best for

New prestressed floor slab production
Adding hollow core to an existing factory
Comparing extruder and slipformer proposals

Fields to prepare

Approved slab profilesRequired
List slab depth, void profile, span range and local fire/acoustic requirements.
120, 150 and 200 mm hollow core slabs for residential floors
Casting bed and output targetRequired
State bed length, number of beds if known, target casting meters per day and shift pattern.
4 beds x 120 m; 360 linear meters/day
Prestressing standardRequired
Share strand size, pattern, tensioning method and applicable standard or authority approval.
12.7 mm strand, EN profile approval pending
Concrete material readinessUseful
Explain aggregate grading, cement type, moisture control and laboratory capability.
Local crushed aggregate; lab has cube molds and slump flow tools

Files to upload

Approved or target slab profile drawingsRequired
Required before comparing extruder/slipformer tooling.
Plant hall, bed or yard layoutOptional
Needed for bed length, strand pulling, saw travel and storage route.
Local material test dataOptional
Useful for judging dry-mix stability and machine suitability.

Project facts

Approved local slab profiles, fire/acoustic requirements and design standard.
Target slab depth range, bed length, strand pattern and daily casting length.
Raw material grading, cement type, aggregate moisture control and lab capability.
Planned storage, curing, cutting, lifting, loading and delivery distances.

Technical scope to confirm

Explain why extruder or slipformer is recommended for the target profile range.
Provide zero-slump mix tolerance, bed preparation, strand tensioning and saw requirements.
List wear parts, profile tooling, lifting clamps, safety guarding and operator training.
State trial-run conditions and acceptance criteria for void shape, surface and camber.

Proposal comparison risks

Machine proposal excludes beds, stressing, saw, lifting clamps, lab equipment or profile tooling.
Local concrete materials cannot hold the zero-slump window required by the machine.
Profile approval, fire rating or strand pattern is assumed but not checked.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Production method	Machine recommendation, profile tooling and mix tolerance window	Approved profiles, standards and local material test data	Profile drawing, mix guidance and reference project list
Prestressing system	Jacks, anchors, bed-end details and tensioning procedure	Certified strand, operator training and safety controls	Tensioning procedure and calibration requirements
Quality control	Recommended checks for dimensions, voids, camber and surface	Lab tests, records and local inspection approvals	Acceptance checklist and lab equipment list

Technical starter text

We are comparing hollow core slab production proposals. Please provide the complete production method including machine, beds, prestressing, saw, lifting clamps, profile tooling, wear parts, mix requirements, training and commissioning. Our target slab depths are: [range]. Bed length is: [length]. Local standard/profile approval is: [standard]. Please include mix tolerance, trial-run acceptance criteria and first-year spare parts.

Requirement checklist

Concrete pipe and manhole production requirement checklist

For pipe machines, manhole equipment, molds, cages, pallets, gaskets and joint-tolerance comparison.

Use this checklist

Best for

Drainage pipe factory planning
Manhole and box product expansion
Comparing pipe machine and mold packages

Fields to prepare

Pipe and manhole size matrixRequired
List diameters, lengths, wall thickness, manhole sizes and expected volume by size.
DN300-DN1200 pipes, 2.5 m length; manholes 1000-1500 mm
Joint and gasket standardRequired
State joint profile, gasket type, leakage test requirement and local utility standard.
Rubber ring joint, EN 1916 equivalent, municipal leakage test
Reinforcement methodUseful
Explain whether cages are manual, welded, outsourced or part of the supplier package.
Cage welding machine not purchased yet
Changeover and yard constraintsUseful
Share frequency of diameter changes, curing method, lifting tools and storage limitations.
Two diameter changes per week; outdoor curing yard

Files to upload

Product drawings or diameter scheduleRequired
Needed for mold, pallet, cage clearance and gasket compatibility checks.
Joint/gasket specificationRequired
Prevents mold proposals that do not match leakage requirements.
Plant layout or yard photosOptional
Useful for crane, forklift, curing and storage planning.

Project facts

Pipe diameters, lengths, wall thicknesses, joint type and gasket standard.
Manhole sizes, cone/slab/riser range and lifting/handling method.
Reinforcement cage method, steel supply, concrete class and curing method.
Expected diameter changeover frequency and storage yard constraints.

Technical scope to confirm

Match each proposed mold to compaction method, joint design and gasket requirements.
Provide diameter changeover time, pallet details, cage clearance and wear-part list.
State whether cages, pallets, lifting tools, curing equipment and testing gauges are included.
Explain acceptance criteria for joint tolerance, surface, dimensional accuracy and leakage risk.

Proposal comparison risks

Mold scope is listed without gasket/joint compatibility review.
Diameter changeover and lifting tools are underestimated.
Pallets, wear rings, cages, testing gauges and first-year wear parts are missing.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Product range	Diameter matrix, molds, pallets and joint tooling	Local standard, gasket choice and approved product drawings	Diameter-by-diameter scope matrix
Reinforcement	Cage clearance advice and handling interface	Cage welding machine, steel supply and cage design approval	Cage drawings and clearance checks
Testing	Recommended dimensional and joint checks	Leakage testing, inspection records and local approvals	Inspection and test plan

Technical starter text

We are planning concrete pipe/manhole production. Please provide a complete package for diameters/sizes: [range]. Joint type and gasket standard: [standard]. Include machine, molds, pallets, cages interface, lifting tools, curing, testing gauges, wear parts, installation and training. Please provide a diameter-by-diameter scope matrix and acceptance criteria for joint tolerance and leakage risk.

Requirement checklist

Spun pile production requirement checklist

For PHC/spun pile molds, spinning machines, tensioning, cages, steam curing, end plates and line integration.

Use this checklist

Best for

PHC pile factory planning
Spun pile mold replacement
Line integration around spinning, tensioning and curing

Fields to prepare

Pile size and standardRequired
List diameter, length, wall thickness, concrete grade, pile class and applicable standard.
PHC 500 and 600 mm, 12 m length, local highway authority standard
Target output and curing cycleRequired
State pieces/day, mold turnover, steam curing cycle and shift pattern.
80 piles/day with steam curing, two shifts
Existing line compatibilityUseful
If replacing molds, share spinning machine, roller spacing, crane capacity and tensioning data.
Existing centrifuge speed range 300-900 rpm
End plate and cage detailsUseful
State end plate supply, cage method, PC bar/strand choice and flange/bolt requirements.
End plates supplied locally; system scope must confirm flange tolerance

Files to upload

Pile drawings or size scheduleRequired
Needed to check mold, end plate, tensioning and steam curing scope.
Existing equipment dataOptional
Required when selecting replacement molds for an existing line.
End plate and cage drawingsOptional
Useful for responsibility split and compatibility review.

Project facts

Pile diameter, length, wall thickness, concrete grade and applicable pile standard.
Target daily output, mold turnover, curing cycle and tensioning method.
Existing spinning machine data if molds are for an existing line.
End plate, cage, flange, bolt and steam curing requirements.

Technical scope to confirm

Confirm mold compatibility with spinning speed, roller spacing, tensioning and crane capacity.
Provide mold balance, flange tolerance, bolt specification and leakage-control details.
Separate mold-only scope from integrated line responsibility.
List first-year bolts, gaskets, wear items, repair method and inspection intervals.

Proposal comparison risks

Mold-only proposals hide responsibility for vibration, balance and speed compatibility.
End plate, cage and tensioning details are assumed instead of specified.
Steam curing, demolding and mold repair workflow are not planned.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Mold compatibility	Mold weight, wheel spacing, balance and flange data	Existing spinning machine, crane capacity and pile standard	Compatibility sheet for each pile size
Tensioning and end plates	Interface advice and required tolerances	Strand pattern, end plate supply and tensioning procedure	End plate drawing and tensioning method
Lifecycle support	Spare bolts, gaskets, repair guidance and inspection plan	Maintenance records and local repair capability	First-year spare and inspection list

Technical starter text

We are comparing spun pile/PHC pile production proposals. Pile sizes: [diameter/length/wall thickness]. Standard: [standard]. Target output: [pieces/day]. Please separate molds and line equipment scope, including spinning compatibility, tensioning interface, end plate details, flange tolerance, bolts/gaskets, steam curing, demolding, spare parts, inspection intervals and acceptance criteria.

Requirement checklist

Magnetic shuttering and formwork magnet requirement checklist

For comparing magnet boxes, integrated magnetic profiles, side rails, chamfers, corners, blockouts and storage systems.

Use this checklist

Best for

Wall panel table setup
Pallet circulation shuttering package
Replacing manual bolted side forms

Fields to prepare

Table or pallet surfaceRequired
State surface material, thickness, condition, coating and cleaning method.
10 mm steel tables, ground surface, cleaned after each casting
Panel thickness and concrete pressureRequired
List panel thickness range, concrete slump/flow and vibration method.
80-200 mm panels, external vibration, low-slump concrete
Accessory scopeRequired
List corners, chamfers, blockouts, rail heights, adapters and storage racks needed.
80/120/200 mm rails, chamfers, window blockouts and magnet rack
Changeover patternUseful
Explain daily setup changes and whether panels repeat or vary by project.
Four panel types per day, frequent openings

Files to upload

Sample panel drawingsRequired
Needed to map rails, magnets, corners, chamfers and blockouts.
Table or pallet photosOptional
Useful for judging magnet contact surface and holding-force risk.
Existing shuttering listOptional
Helps suppliers propose adapters instead of replacing everything.

Project facts

Table or pallet surface material, thickness, condition and cleaning method.
Panel thickness range, concrete pressure, vibration method and opening complexity.
Daily setup changes, required rail lengths, chamfers, corners and blockouts.
Storage, cleaning, oiling and magnet maintenance workflow.

Technical scope to confirm

Provide holding-force data under realistic table and vibration conditions.
Compare separate magnet boxes versus integrated magnetic profiles for the product mix.
List accessories: corners, chamfers, blockouts, adapters, activation tools and racks.
State repair method, spare parts, expected service life and table-surface requirements.

Proposal comparison risks

Holding force is stated under ideal lab conditions only.
Accessory scope is too small for openings, corners and daily changeover.
Dirty or damaged tables reduce magnetic performance after installation.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Holding force	Magnet force data, safety factor and use limitations	Actual table condition, vibration method and concrete pressure	Holding-force datasheet and recommended spacing
Accessory package	Rails, magnets, corners, chamfers, blockouts and storage	Panel drawing samples and daily changeover pattern	Accessory list mapped to sample panel drawings
Maintenance	Cleaning, repair, activation tools and spare parts	Maintenance routine and table cleaning discipline	Maintenance guide and spare part list

Technical starter text

We are comparing magnetic shuttering/formwork magnet systems. Table or pallet surface: [material/condition]. Panel thickness range: [range]. Typical panel drawings include: [openings/corners/chamfers]. Please provide magnets, rails/profiles, corners, chamfers, blockouts, activation tools, storage racks, spare parts and maintenance guidance as separate scope lines. Include holding-force data under realistic vibration/table conditions.

Requirement checklist

New precast factory setup requirement checklist

For early planning of a new precast plant, factory expansion or product-line conversion before equipment scope is compared.

Use this checklist

Best for

New factory feasibility screening
Expanding from one precast product into another
Checking whether land, building and utilities match the target product mix

Fields to prepare

Target product mixRequired
Separate finished products such as wall panels, hollow core slabs, pipes, piles, poles, beams or custom elements.
Wall panels first, later hollow core slabs and stairs
Market and project basisRequired
State the country, target project type, likely standards and whether products will be sold locally or used internally.
Vietnam, residential projects, local code plus project drawings
Target capacityRequired
Give daily or monthly output by product type and expected number of shifts.
500 m2/day wall panels, one shift, expansion to two shifts later
Land, building and crane constraintsUseful
Share land size, hall span, crane capacity, storage yard, access road, power, water and steam or curing assumptions.
Existing 30 m x 120 m hall, 10 t crane, outdoor storage yard
Automation phaseUseful
Explain whether the first phase needs manual tables, semi-automatic equipment, pallet circulation, MES/BIM or future automation.
Manual table phase one, MES and circulation line later

Files to upload

Land or building layoutRequired
Even a simple sketch helps screen flow, cranes, curing, storage and delivery routes.
Target product drawings or catalogRequired
Needed to choose between wall, floor, pipe, pile, pole and custom-product production concepts.
Utility and crane informationOptional
Power, water, steam, compressed air and crane data prevent unrealistic factory concepts.
Project pipeline or market noteOptional
Useful for judging whether capacity should follow confirmed projects or long-term market ambition.

Project facts

Finished precast products must be defined first because each product family drives layout, molds, handling and storage.
Land and crane constraints often decide whether a concept is practical before equipment price is meaningful.
Local standards, transport distance and installation practice affect whether the factory sells finished products locally or buys upstream supplies.

Technical scope to confirm

Ask suppliers to separate civil building assumptions from equipment, molds, utilities, installation and commissioning.
Require a phased concept if the factory wants to start manually and add automation later.
Ask for a clear line between supplier scope, project-prepared infrastructure and local contractors.

Proposal comparison risks

A factory layout is proposed before product mix and storage rules are clear.
Crane coverage, curing space, rebar preparation and delivery route are missing from the proposal.
Automation is presented as a machine list without labor, data flow, maintenance and training assumptions.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Factory concept	Process flow, equipment concept, mold concept and phased investment options	Product mix, target capacity, project pipeline and local market assumptions	Concept layout and product-capacity basis
Building and utilities	Utility demand, crane load assumptions and installation conditions	Land, hall, foundation, power, water, steam, air and local contractors	Utility load list and project-prepared-work list
Commissioning	Installation support, trial production plan, training and acceptance criteria	Operators, raw materials, local lifting tools and trial-product drawings	Commissioning checklist and training plan

Technical starter text

We are planning a new precast factory or expansion. Target products: [product mix]. Country/market: [country/project type]. Target capacity: [capacity by product]. Existing land/building/crane/utilities: [facts]. Please propose a phased factory concept with equipment, molds, curing, rebar preparation, handling, storage, laboratory, utilities, installation, training and project-prepared works separated clearly.

Requirement checklist

Finished precast product technical requirement checklist

For local or regional sourcing of finished precast elements such as piles, pipes, poles, slabs, wall panels, beams, columns and utility products.

Use this checklist

Best for

Finding nearby producers for heavy finished concrete products
Preparing drawings and BOQ before comparing delivered scope and price
Checking standards, lead time, transport and installation responsibility

Fields to prepare

Product type and standardRequired
State the exact product family, design standard, load class, strength grade or project specification.
Reinforced concrete pipe, DN1200, Class III, local utility specification
Project locationRequired
Give site city, country and unloading constraints because finished precast is usually location-sensitive.
Riyadh project site, night delivery allowed, crane by contractor
Quantity and delivery scheduleRequired
List total quantity, delivery batches, earliest delivery date and storage limits.
420 pieces over 10 weeks, first delivery in September
Responsibility splitUseful
Clarify whether the request needs supply only, delivery, installation, lifting anchors, grouting or site supervision.
Supply and delivery only; installation by main contractor

Files to upload

Drawings and BOQRequired
Needed to confirm dimensions, reinforcement, inserts, openings, load class and quantity.
Project specificationRequired
Standards, concrete grade, inspection requirements and approval process should be clear before price.
Site delivery informationOptional
Delivery route, unloading equipment, storage space and access hours affect real landed cost.
Photos of installation areaOptional
Useful for pipes, manholes, piles, poles, panels and other products with lifting or access risk.

Project facts

Finished precast products should be searched by location first because transport distance, local standards and project approvals matter.
The technical request should separate product supply, delivery, unloading, installation, grouting, testing and site supervision.
Drawings and project specifications are more important than broad product names such as pipe, pile or panel.

Technical scope to confirm

Ask for production capacity, approved standards, mold availability and project-reference evidence for the same product family.
Confirm whether testing, third-party inspection, delivery scheduling and breakage responsibility are included.
Require clear exclusions for unloading, lifting equipment, installation and site delays.

Proposal comparison risks

A proposal is made by product name without checking drawings, standards or project approval rules.
Transport and unloading are excluded or hidden, making the delivered price misleading.
Lead time ignores mold availability, curing time, inspection hold points and delivery batches.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Product compliance	Manufacturing standard, test certificate, dimensional tolerance and approval support	Project drawings, specification, approval route and inspection requirements	Drawing review note and compliance checklist
Delivery	Production schedule, loading plan, transport limits and delivery batch proposal	Site address, unloading method, storage area and delivery time restrictions	Delivery plan and responsibility split
Installation interface	Embedded parts, lifting points, gasket or joint guidance where applicable	Site installation team, crane, grout, bedding, alignment and acceptance process	Installation interface note

Technical starter text

We need a finished precast product technical review. Product: [product type/specification]. Project location: [city/country]. Standard/load class/strength: [standard]. Quantity and schedule: [quantity/batches]. Scope: [supply only/delivery/installation/support]. Please confirm mold availability, production lead time, testing certificates, project references, delivery method, exclusions and required documents for approval.

Requirement checklist

Production quality troubleshooting brief

For cracks, honeycombs, dimensional problems, unstable strength, surface defects, lifting damage or repeated rejection in precast production.

Use this checklist

Best for

First review of recurring production defects
Preparing evidence before involving a specialist, material supplier or equipment supplier
Separating process problems from mix design, mold, curing, handling and site damage

Fields to prepare

Defect type and frequencyRequired
Describe the defect, how often it happens, affected product types and whether it is new or recurring.
Cracks after demolding on 15% of wall panels, mainly around openings
Production stageRequired
State when the problem appears: casting, vibration, curing, demolding, lifting, storage, transport or installation.
Visible after demolding and worse after first lifting
Mix, curing and strength recordsUseful
Share concrete mix, slump or flow, admixture dosage, temperature, curing cycle and strength-test timing if available.
C40 mix, steam curing 8 hours, demold at 18 MPa
Recent changesUseful
List changes in raw materials, mold, release agent, lifting system, operators, curing cycle or weather.
New release agent and faster demolding target since June

Files to upload

Clear defect photosRequired
Include close-up and full-product photos, with scale or marked location.
Product drawings and lifting planRequired
Needed to check openings, reinforcement, lifting points, inserts and stress concentration.
Batch and QC recordsOptional
Strength, slump, temperature, curing, demolding time and rejection records help avoid guessing.
Handling or storage photosOptional
Useful when defects may come from lifting, stacking, support points or transport.

Project facts

Troubleshooting should identify the stage where the defect first appears, not only the final visible damage.
Photos, drawings and QC records are needed together; a single image rarely proves the root cause.
Many problems involve a chain: mix design, curing, mold condition, demolding strength, lifting points and storage support.

Specialist questions

Ask which evidence is missing before changing materials, molds or lifting systems.
Request a risk-ranked diagnosis instead of a single unsupported root cause.
Confirm whether the issue should be checked by process control, material supplier, structural engineer or equipment supplier.

Review risks

The defect is blamed on one material without checking curing, handling and demolding strength.
Photos do not show location, scale, timing or whether the defect repeats.
A repair method is discussed before the acceptance standard and root cause are known.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Root-cause review	Initial evidence review and ranked possible causes	Photos, drawings, batch records, timeline and recent changes	Defect evidence pack
Corrective action	Suggested checks, trials or supplier-specific adjustments	Trial execution, process records and production-team feedback	Trial plan and before/after records
Repair or acceptance	Repair-product or process guidance where relevant	Project acceptance standard and engineer approval route	Acceptance criteria and repair method statement

Technical starter text

We need help reviewing a precast production quality issue. Product: [product]. Defect: [crack/honeycomb/dimension/strength/surface/lifting damage]. Stage first noticed: [stage]. Frequency: [frequency]. Recent changes: [materials/process/mold/curing/lifting]. Attached files include photos, drawings, QC records and handling photos. Please advise what evidence is missing, likely cause categories and first corrective checks.

Requirement checklist

Factory automation, MES and BIM workflow brief

For plants comparing automation phases, MES/BIM data flow, pallet circulation, production scheduling, QC records and equipment interfaces.

Use this checklist

Best for

Moving from single machines to connected workflow
Preparing MES/BIM requirements before meeting automation suppliers
Checking whether data, equipment and production habits are ready for automation

Fields to prepare

Current workflowRequired
Describe how orders, drawings, rebar, molds, casting, curing, storage and delivery are planned today.
Excel schedule, manual drawing release, fixed tables and paper QC records
Automation targetRequired
State whether the target is scheduling, pallet circulation, rebar handling, concrete distribution, QC records, BIM/MES or full line control.
MES scheduling and pallet circulation phase one
Software and equipment interfacesUseful
List ERP, BIM/CAD, barcode/RFID, batching plant, concrete distributor, curing system, cranes or existing machines.
Tekla model exports, ERP order list, existing batching plant PLC
Main bottleneckUseful
Explain the business problem: rework, missing parts, late drawings, low table utilization, delivery confusion or QC traceability.
Frequent rework because embedded parts and drawings change after mold setup

Files to upload

Current process map or layoutRequired
Needed to understand material flow, data handoff, stations and bottlenecks.
Equipment listRequired
Include existing machines, suppliers, PLC/interface information and age where known.
Sample schedule and QC recordOptional
Shows how planning and traceability work before new software is proposed.
BIM/CAD or ERP sample exportOptional
Useful for checking whether automatic data flow is realistic or needs manual preparation.

Project facts

Automation should start from workflow pain points, not only from faster machines.
MES/BIM value depends on clean product data, drawing release discipline, station feedback and realistic production scheduling.
Existing equipment interfaces and operator habits can decide whether phase-one automation should be light or deep.

Technical scope to confirm

Ask suppliers to separate hardware automation, software licenses, integration, data preparation, training and maintenance.
Require examples of data flow from drawing/BIM to production schedule, pallet or mold assignment, QC record and delivery.
Confirm which interfaces are standard, which require custom integration and who maintains them after commissioning.

Proposal comparison risks

MES is presented as software without workflow cleanup, master data and operator feedback rules.
Automation scope ignores existing batching, cranes, rebar preparation, curing and storage processes.
The supplier promises full BIM integration without testing sample project data.

Scope boundary table

Item	System scope	Project/local scope	Evidence required
Workflow design	Automation concept, station logic, data flow and phased roadmap	Current workflow, pain points, product mix and decision priorities	Process map and phase-one target
System integration	MES/BIM/ERP/equipment interface list and custom integration assumptions	Existing software exports, equipment manuals and IT access rules	Interface matrix and sample data test
Commissioning and adoption	Training, test cases, acceptance criteria and support model	Operators, master data, trial orders and internal owner	Pilot plan and acceptance records

Technical starter text

We are reviewing precast factory automation and MES/BIM workflow. Current process: [manual/software/equipment]. Target: [scheduling/MES/BIM/pallet circulation/QC/line control]. Existing equipment and systems: [list]. Main bottleneck: [problem]. Please separate hardware, software, integration, data preparation, training, commissioning, support and phase-one deliverables. Include required sample data and interface assumptions.