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Floor Deck Roll Forming Machine: Fixed, Rafted or Double-Layer Equipment for Multiple Profiles?

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Floor Deck Roll Forming Machine: Fixed, Rafted or Double-Layer Equipment for Multiple Profiles?

For a floor deck roll forming machine, shortlist fixed stations for a dominant proven profile, removable rafts for several agreed profiles, or double-layer equipment for two recurring profiles.

Choose against your drawings, coil supply and order mix. A four-profile offer does not automatically cover a fifth; two forming levels do not establish simultaneous production.

Compare fixed, rafted and double-layer equipment

Compare where the tooling stays and what must change. The layout name alone does not establish which deck drawings your equipment can produce.

  • Fixed stations: Matched forming rolls stay installed. A different geometry may need an engineered adjustment or individual retooling.
  • Removable rafts: Stands, shafts and tooling move as assembled modules. Identify any guides, cutters or other parts that stay outside those modules.
  • Double-layer: Two forming sets stay installed at different levels. Ask how the required level is selected and which equipment it shares.

Read across each row to compare the three options. On a narrow screen, scroll horizontally through this matrix.

Fixed, rafted and double-layer equipment: compare the same seven requirements

Decision point Fixed stations Removable tooling rafts Double-layer
Profile coverage A matched profile or explicitly engineered adjustment range. Only profiles supported by the agreed raft/tooling sets. Two specified profiles in the two installed forming sets.
Tooling exchange Other geometry may require adjustment or individual retooling. Exchange assembled modules; identify parts outside the raft. Select the required level; identify any additional adjustments.
Cutters Match the cutter to the supplied profile and material. Confirm dies and cutter changes for every raft. Confirm cutter access and routing from both levels.
Handling Provide coil access and finished-sheet support. Add space and suitable equipment for raft movement and storage. Allow entry, discharge and maintenance access at both levels.
Scheduling Strong candidate for stable, long runs of a dominant profile. Evaluate for several recurring profiles with planned switches. Evaluate for two recurring profiles; plan sequentially unless independent operation is demonstrated.
Included equipment Itemize forming tools, cutter, controls and coil/output equipment. Itemize each raft, dies, interfaces, handling equipment and stacker. Itemize both forming sets, shared equipment and level-selection provisions.
What to request Samples across the agreed material and adjustment range. A complete profile change, including restart and acceptable samples. Both profiles, the switching sequence and the shared-equipment layout.

Read the BMS examples as defined profile sets

BMS describes a double-layer floor deck roll forming machine for two distinct profiles. Compare those two drawings with the recurring work you need to supply.

BMS blue and orange floor-deck machine with two forming levels

Two forming levels on a BMS double-layer floor-deck machine.

  • Four-profile rafted example: BMS describes removable tooling assemblies for four profiles. Match your drawings to the offered tooling; unrelated profiles need separate confirmation.
  • Two-profile layer example: Ask which infeed, drives, controls, cutters and discharge equipment are shared.

Check what would change your shortlist

  • A dominant long-run profile: Keep fixed stations on the shortlist when alternative orders can be grouped, made elsewhere or served by an agreed retooling arrangement.
  • Overlapping delivery peaks: Compare required production windows with available hours. A machine can cover both shapes yet lack time for their combined orders.
  • Parallel output required: Request an engineered layout showing the separate coil supply, cutting and unloading arrangements. Do not infer that capability from the number of levels.
  • Unused flexibility: Account for the additional tooling, storage and maintenance requirements. Compare them with your current order book before expanding the equipment scope.

Define your deck-profile family and coil supply

Define the family from every drawing and valid material combination. Similar overall dimensions can hide different ribs, side laps or embossing.

Specify the finished deck

  • Cross-section: Provide rib height, pitch, cover width, bends and side laps. Mark the drawing revision and the dimensions your customer will inspect.
  • Surface and secondary features: Specify embossing pattern and position, plus holes, slots or edge details. Ask which features need different tools or settings.
BMS deck cross-section drawing with rib geometry and enlarged embossing details

Deck cross-section and embossing details from BMS’s YX50-333-1000 equipment documentation.

BMS’s European-design floor decking machine is described around YX50-333-1000. Use that drawing-level specificity when requesting your own profile family.

State the material, coil and order limits

Inputs that define the proposed equipment range

Input What you should specify
Steel and coating Give the steel grade, specified yield strength, coating and thickness range in mm. List valid material/thickness combinations rather than combining separate maximum values.
Available coils Give actual widths, inside and outside diameters in mm, and maximum mass in kg. Identify your usual coil sources and representative material information.
Finished orders Give cut lengths in mm or m, demand in m per month by profile, typical batches and changes per shift or week. Include urgent and small repeat orders.

Separate feed width from cover width

Two widths with different jobs

Width Meaning
Coil feed width Width of the strip entering the equipment. Match it to your actual coil supply.
Effective cover width Useful coverage of the formed deck. Read it from the agreed finished-profile drawing.
  • Width variation: Ask whether it needs guide adjustment, changed tooling or another forming set. A common coil width does not make finished geometries interchangeable.
  • Drawing assignment: Ask for the forming set, usable material combinations, adjustments and excluded features for every drawing.
  • Future profiles: Treat a new rib height, lap or embossing pattern as a separate engineering request until compatibility and supplied parts are agreed.

Specify tooling, cutters and handling as one package

Compare the complete profile-change package. Identify what moves with the tooling, what stays installed and what must be changed separately.

Map the tooling interfaces

  • On the raft: Identify the supplied stands, shafts, rolls and embossing tools for each profile.
  • At the base: Ask how the raft is located, fastened and connected to the drive. Request the supplier’s exchange and handling arrangement.
  • Between forming levels: Ask how the strip is aligned with the selected tooling and how the output reaches the cutting and discharge equipment.
  • Outside the forming set: Include changes to entry guides, levelling, punching and embossing settings. Count their setup work even when the rolls remain assembled.

Match the cutters and exit equipment

BMS’s rafted floor decking rollformer with flying shear lists a front plain shear, servo-controlled flying post-cutoff and automatic stacker.

Its conventional European-design example lists stopped hydraulic post-cutting and unpowered exit racks. Compare these packages as well as the forming rolls.

BMS rafted floor-deck line in a workshop with a blue outfeed table

BMS rafted floor-deck equipment with its sheet exit area.

Cutting and handling checks for each profile

Equipment Ask the supplier to define
Final cutoff Profile die shape, material range, supported cut lengths, die exchanges and access. Distinguish the front plain shear from the final profile cutoff.
Cutting mode State whether the quoted unit uses flying or stop-to-cut operation. Use the corresponding demonstrated rate and stoppages in your production schedule.
Sheet support and stacking Check short and long sheets, profile shape and bundle requirements. Confirm discharge from each forming level and the unloading work required.
Raft handling and storage Include the supplier-specified movement equipment, storage positions, access routes and space needed for off-line preparation.

Make scope and price comparable

  • Extra rafts: Ask whether the price includes cutting dies, storage stands and exchange equipment.
  • Quotation lines: Itemize the decoiler or coil car, guards, controls, exit racks or stacker, with quantities, assigned profiles and optional-item prices.
  • Like-for-like price: Compare complete family packages. Identify items supplied locally before treating a lower base-machine price as a lower total purchase cost.

Agree exchange safety requirements

Ask the supplier and your plant safety team to define guarding, the tooling-exchange method and control of electrical, hydraulic and stored energy.

  • ISO 12100: Addresses machinery risk assessment. It does not establish conformity of the offered machine.
  • ISO 14118: Addresses prevention of unexpected start-up. Ask how the requirements apply to the proposed equipment and exchange arrangement.

Measure changeover against your order mix

Compare complete changeover time using the same start, finish and acceptance conditions. Timing raft movement alone leaves other production losses outside the comparison.

Time the whole switch

A complete changeover interval

Timing point What belongs in the comparison
Start The last acceptable piece of the old profile. Record its production time and identify the profile and material.
Work inside the interval Include shutdown under the agreed safe procedure, material removal, tooling or level selection, cutter work, rethreading, adjustment and sample checks.
Finish The first acceptable piece of the next profile. Apply the agreed dimensional and cut-quality requirements before recording the end time.

Calculate a representative weekly time budget

Use actual metres by profile, batches, due dates, coil changes and available shifts. Apply an accepted running rate for the specified material and length mix.

Illustrative weekly calculation — hypothetical assumptions

Time component Assumed basis / calculation Time
Accepted deck production 3,000 m ÷ 15 m/min 200 min
Complete profile changes 4 changes × 25 min/change 100 min
Combined time 200 + 100 300 min
  • Use demonstrated inputs: The assumed rate and changeover time are not BMS specifications or measured results. Substitute values demonstrated for each proposed configuration.
  • Add other stoppages: The example excludes separate coil changes, breaks, maintenance and other losses. Include them without counting the same stopped interval twice.

Check the difficult week

  • Urgent batches: Run the comparison for small repeat orders and overlapping delivery peaks, not only average monthly volume.
  • Cutting and unloading: Reflect cutter, stacker and manual unloading limits in the accepted running rate or stoppage allowance.
  • Comparable offers: Use the same accepted output quantity, profiles, material and length mix in all three calculations.
  • People and preparation: Include the operators, handling resources and off-line preparation needed for each change. Check that they are available in the planned shift.
  • Order grouping: Grouping the same profile can reduce switching, but changes stock and delivery timing. Check both consequences before changing batch sizes.

Request a profile-specific demonstration and quotation

Request a trial using your drawings and representative coil. Agree the profile transitions, personnel, equipment and acceptance requirements before the demonstration.

Demonstrate a useful profile transition

  1. Agree the trial matrix. Select profile/material combinations covering the relevant thickness, length and embossing differences. Define dimensions, cut quality and handling requirements with your quality team.
  2. Run and inspect. Identify the coil grade and thickness. Inspect ribs, cover width, laps, embossing and cut ends against the drawings; check sheet support and stacking.
  3. Change and restart. Show the actual tooling exchange or level selection, including guides and cutters. Record the complete interval and material used before acceptable output resumes.
  4. Return to an earlier profile. Where repeat orders matter, compare repeat samples and the work needed to restore the previous setup. A single easy-profile run cannot show that transition.

Send a complete request for quotation (RFQ)

RFQ inputs for your Indian factory

Input group Include in your request
Every deck drawing Cross-section, revision, rib and lap details, cover width and the dimensions your customer will inspect.
Materials and thicknesses Steel grade, specified properties, coating and each required material/thickness combination.
Embossing and extra features Patterns, positions and requirements, plus any holes, slots or edge features.
Actual coil supply Available widths, inside/outside diameters, maximum mass, usual sources and representative material information.
Lengths and order mix Cut lengths, demand by profile, batch sizes, change frequency, small repeat orders and urgent deliveries.
Factory arrangement Floor layout, handling resources, access, raft-storage positions and items you expect to supply locally.
Electrical requirements Actual voltage, frequency, phases and available capacity. Request a matching electrical design and connected-load schedule.

Use the metal deck roll forming machine range to identify candidates. Ask each supplier to quote against the same drawings, production task and supplied equipment.

Request comparable quotation documents

  • Profile coverage: Request a drawing-by-drawing list assigning every raft, roll set, embossing tool and cutting die.
  • Quoted responsibilities: Separate included items, priced options and locally supplied work. Identify any changes required to shared equipment.
  • Support terms: Itemize spare tools, installation, training and service so each quotation covers the same purchase task.

Keep the trial results specific

  • Traceable conditions: Record the drawing revision, coil material, thickness, operating conditions and measuring points.
  • Representative samples: Retain samples or photographs with measurements, as agreed with the supplier. Compare any promised improvement against that stated trial scope.
  • Coverage limits: Results for one profile/material combination do not establish performance for every drawing in the family.

Keep machine capability separate from structural approval. Ask your project engineer for the deck design and performance documentation required for your floor system.

Frequently asked questions

Do different sheet lengths require different forming rolls?

Length alone does not change the cross-section. Confirm the controls, cutoff and handling range; very short or long sheets can create limits with the same forming tools.

Can you feed a wider master coil directly?

Only within the agreed feed range. If your supply needs slitting, request that equipment or service separately; do not assume it is included with the deck former.

Does an extra raft cover every machine failure?

It can support separate tooling preparation or maintenance, but cannot replace the rest of the line. Ask which base, drive, controls and handling equipment remain shared and which failures still stop production.

Send a complete profile-specific RFQ

Choose the architecture that covers your agreed profile family, complete equipment scope and difficult-week schedule.

Send BMS the drawing, material, coil, order and electrical inputs above. Request a profile-by-profile equipment recommendation and an itemized quotation.

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ABOUT BMS
Founded in 1992, BMS Machinery joined XIAMEN BMS GROUP in 2017. Our manufacturing network in China includes 8 factories, 6 machining centers and 1 steel structure company, covering over 30,000 m². Supporting credentials include ISO9001:2015 quality management certification and SGS-issued CE/UKCA machinery compliance verifications. XIAMEN BMS GROUP’s Dun & Bradstreet D‑U‑N‑S Number is 55-379-8879.​​​​​​​
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