Executive Summary The B200 inline turntable stretch wrapper is engineered for fully automated packaging lines, receiving, stabilizing, wrapping, and discharging palletized loads without forklift intervention. Built with an integrated motorized roller bed, the B200 handles a standard dynamic payload of 2,000 kg (with heavy-duty options for 2,500–3,000 kg) across an adjustable variable-frequency rotational speed of 3–12 r/min. For tall, loose, or lightweight products, an integrated pneumatic top plate exerts regulated downward clamping to prevent shifting during rotation. Featuring coplanar roller integration with plant conveying systems, a dual-roller power pre-stretch carriage (up to 200%), and a rapid 10-second film changeover, the B200 delivers consistent unit load containment under continuous production cycles.
What the B200 adds to a turntable
An off-line wrapper needs a forklift operator to load, start, and unload each pallet — labour, traffic in the staging zone, and wrap tension that changes with the shift.
The B200 puts a live-roller deck inside the rotating chassis, so infeed, rotation, film clamp, cut-and-wipe and outfeed run as one sequence. Soft-start and soft-stop drives take the shock out of acceleration, and the pallet moves from conveyor to deck to conveyor without being touched.
Roller turntable and inline conveyor
The roller bed is built to sit coplanar with the infeed and outfeed lines.
- Pass-line alignment: the turntable roller surface is set to your conveyor pass-line height so pallets cross roller-to-roller without a step.
- Roller drive: chain-driven rollers give positive traction even with wet wooden pallets, up to the rated 2,000 kg (2,500–3,000 kg option).
- Automated Cycle Sequence:
- An upstream pallet is released by an indexing brake gate and propelled onto the B200 turntable.
- Integrated photo-sensors confirm center positioning, disengage the roller drive, and activate mechanical table position locks.
- The overhead pneumatic top plate extends downward (if selected in the packaging recipe).
- The turntable executes its soft-start acceleration, wrapping the unit load to preset counts.
- The film clamp holds the web, a cutter severs the tail, and a wipe presses the edge onto the load.
- The plate retracts, the turntable homes, and the rollers discharge the pallet.
Load capacity and turntable size
Selecting the correct turntable diameter and structural load rating prevents structural fatigue and mechanical interference between pallet corners and stationary columns.
| Machine Parameter | Standard B200 Specification | Heavy-Duty / Extended Option |
|---|---|---|
| Rated Dynamic Payload | 2,000 kg | 2,500 kg to 3,000 kg |
| Turntable Disc Diameter | 1,800 mm | 2,000 mm |
| Rotational Speed Range | 3–12 r/min (VFD governed) | Custom profiles available |
| Power Pre-Stretch Ratio | Up to 200% (fixed mechanical gearing) | Custom gear ratios available |
| Packing height | as ordered | 2,800 mm option per the B200 page |
| Film load | about 10 s per the B200 page | — |
Pallet Envelope and Turntable Matching Rules
Turntable sizing depends on the maximum diagonal profile of the palletized load, calculated as √(Length² + Width²):
- Standard 1,800 mm Turntable: Specifically engineered for standard 1,200 mm × 1,000 mm pallets (diagonal: 1,562 mm). It provides adequate radial clearance for film carriage traverse and side safety fencing.
- Heavy-Duty 2,000 mm Turntable: Required for 1,200 mm × 1,200 mm square pallets (diagonal: 1,697 mm) or barrel drums with peripheral overhang.
- Out-of-Envelope Boundary Check (1,500 mm × 1,500 mm Pallets): A 1,500 mm × 1,500 mm footprint yields a diagonal dimension of 2,121 mm (
√(1500² + 1500²)). This dimension exceeds the 2,000 mm turntable boundary, causing dangerous load overhang, uneven roller stress, and interference with the mast carriage. Products of this scale require custom-engineered oversize turntables or an alternative packaging architecture (such as an automated rotary ring or rotary arm wrapper).
Turntable speed and time per pallet
Line throughput is governed by total cycle time per pallet (t). This is derived from the rotational wrapping duration, carriage cycle counts, film handling, and conveyor transfer times:
t = (N_winds × 60 ÷ RPM) + t_film (10 s) + t_transfer + t_plate
Where:
N_winds: Total carriage wrapping revolutions (bottom reinforcement, vertical body traverses, and top wraps).RPM: Steady-state turntable rotational speed (variable 3–12 r/min).t_film: Film threading and tail cut/clamp manipulation time (~10 s).t_transfer: infeed entry, positioning and outfeed discharge — measured on your line.t_plate: top plate lowering and retracting time (0 s when bypassed; measure it when active).
Throughput at 20 winds
- Fast profile, 12 r/min: 20 × 60 ÷ 12 = 100 s of rotation; add film load (about 10 s per the B200 page), cut, transfer and any clamp time measured on your line; pallets per hour = 3600 ÷ cycle.
- Slow profile, 3 r/min: 20 × 60 ÷ 3 = 400 s of rotation; the same additions apply. A dense 2,000 kg stack at the fast end is a different risk profile, so check both numbers against your load before fixing a rate.
Why heavy loads want the slow end of 3–12 rpm
At speed, the load sees centrifugal force F = m × ω² × r. For a 2,000 kg pallet at 1.2 m radius the force grows with the square of the speed, so the fast end of the range pushes bottom fasteners and film tension hard. Run heavy or tall stacks at the low end, and check the force at your planned rpm before you fix a rate.
Pneumatic top plate
A spinning turntable pushes sideways on every layer, and film tension pulls the top layers out of line before the wrap closes. The B200 offers an overhead pneumatic top plate that clamps the stack while the turntable turns.
Engineering Selection Criteria
- Use the top plate when:
- the load is loose or unbonded (chairs, furniture parts, stacked mouldings);
- the load is light and empty (cartons, bottles, cans) and drifts under film tension;
- Tall stacks on small bases: when height approaches or exceeds the base width, ramp-up torque wants to tip the stack — slow the turntable and use the top plate.
- Bypass it when:
- the load is rigid and self-stabilising (interlocked cartons, settled bags, heavy components, banded units); in bypass the plate stays at its upper limit and adds no time.
- Cycle time impact: the top plate adds clamp-extend, dwell and retract time to every pallet; measure one cycle with and without it before you commit to a rate.
(The A600 page describes the same press driven by a motor or a pneumatic cylinder for loose containers and furniture.)
Film carriage and pre-stretch
The B200 features a powered dual-roller pre-stretch film carriage that decouples film elongation from load-wrapping tension:
- Pre-stretch up to 200%: 1 m of roll stock yields about 3 m of wrap at that setting, with the ratio made to your requirement. Compare film metres per pallet against your current brake-tension machine before claiming a saving.
- Film loading: a quick-access gate lets the operator drop in a roll and thread the web; the B200 page gives about 10 s for the film load.
- Tension isolation: elongation happens between the carriage rollers, so the film reaches the load at controlled containment tension — tight enough to unitise, not tight enough to crush soft cartons.
Packing height and options
The modular architecture of the B200 allows line designers to tailor mechanical parameters to plant requirements:
- Mast and packing height: the packing height is set with the machine; the B200 page lists a 2,800 mm option for high loads.
- Automated Pneumatic Cut & Wipe: Fully automates film tail management. A pneumatic clamp secures the web, a hot-wire or serrated cutter trims the film upon cycle completion, and a brush system seals the tail cleanly against the pallet.
- Capacity upgrade: 2,000 kg standard, 2,500–3,000 kg as an option, built with the heavier bearing and frame package.
(For comparison: the A200 semi-automatic unit has a 1,500 mm turntable, an 80 mm base with a 10 mm plate, 1,800 kg capacity and 220V single-phase supply; the B200 is built for continuous conveyor lines.)
Utilities and guarding
Automated inline cells require complete electrical, pneumatic, and perimeter safety integration:
- Compressed air: clean, dry air for the top plate, film clamp and cutter; the pressure and consumption for your machine are stated in its quotation, with a filter-regulator on the machine.
- Electrical supply: 3-phase supply for the roller and turntable drives, as specified in the machine’s quotation.
- Guarding: set by the site risk assessment — fence the turning circle and the conveyor ends, and interlock the access gates so the turntable stops when a gate opens.
Selection checklist
Evaluate these technical parameters before finalizing an inline turntable wrapper order:
- Pallet Profile: Verify footprint dimensions (L × W), overall height, and maximum gross weight (ensuring it falls within the 2,000 kg standard or 2,500–3,000 kg heavy-duty rating).
- Geometric Clearances: Calculate maximum pallet diagonal (
√(L² + W²)). Verify that 1,200 mm × 1,000 mm fits the 1,800 mm turntable, 1,200 mm × 1,200 mm fits the 2,000 mm turntable, and loads exceeding these envelopes are flagged for custom platforms. - Throughput target: pallets per hour = 3600 ÷ cycle; check that the slow setting you need for heavy or unstable loads still meets peak output.
- Load stability: do loose, light or tall loads need the top plate? Budget its clamp time into the cycle, measured on your floor.
- Conveyor interface: confirm pass-line elevation, roller pitch and roller diameter against your plant conveyors, and the control handshake between them and the B200 turntable.
- Automation Package: Select automatic pneumatic film clamping, cutting, and wiping for zero-operator inline operation.
Engineering FAQ
What is the standard load capacity of the B200, and can it be expanded?
The standard dynamic rating of the B200 roller turntable is 2,000 kg. For heavy-duty industrial applications (such as metal casting, bulk liquids, or refractory materials), the chassis and bearing drive can be factory-expanded to 2,500 kg or 3,000 kg.
How does the pneumatic top plate prevent crushing fragile cartons?
The overhead platen is actuated by a precision pneumatic cylinder governed by an adjustable pressure regulator. Operating pressure can be modulated to apply gentle stabilization on lightweight or empty boxes without structural crushing, or increased to secure rigid, shifting components.
What turntable rotational speeds are available, and how are they adjusted?
The B200 operates from 3 to 12 r/min, managed through a variable-frequency drive. Acceleration and deceleration ramp curves are programmed via the PLC to ensure soft starts and stops, preventing pallet loads from shifting during speed transitions.
How does the 200% pre-stretch system save consumable film costs?
The powered pre-stretch carriage draws film off the roll under controlled tension before it reaches the pallet; the B200 page lists pre-stretch up to 200%, with the ratio made to your requirement. Work the saving out on your own film bill: at a 200% setting 1 m of roll stock yields about 3 m of wrap, so film metres per pallet fall roughly with the ratio — measure it on one pallet before you promise a number.
Next step
Integrate the B200 inline turntable stretch wrapper into your automated facility through our engineering evaluation process:
- Submit Line Parameters: Send your pallet dimensions, maximum stack weights, required pallets per hour, and conveyor pass-line heights to our mechanical engineering team.
- 48-Hour Technical Proposal: We will return a complete 2D/3D system integration layout, cycle-time simulation, and formal equipment quotation within 24 to 48 hours.
- Control and Interface Review: Coordinate with our automation specialists to verify PLC communication handshake protocols, safety interlocks, and conveyor height matching.
Explore our technical documentation and full equipment range:
- Automatic pallet stretch wrapping machine B200 product specifications
- Industrial turntable stretch wrapper family overview
- Semi-automatic stretch wrapper A200 specifications
- Pneumatic top-plate stretch wrapping machine A600 technical details
Last reviewed: 2026-11-05
