Executive Summary: Many warehouse operations rely on manual hand pallet jacks rather than electric forklifts for intra-facility material transport. Traditional turntable stretch wrappers feature a high profile that mandates long, space-consuming floor ramps for pallet jack entry. The M-type (cutout turntable) pallet wrapping machine resolves this physical constraint. Built with an integrated E/M-shaped turntable slot, it allows hand pallet jacks to deposit loads directly onto the rotating platform at floor level. The automated cycle is initiated from the column control panel, where a powered pre-stretch carriage applies film according to pre-programmed tension, overlap, and height parameters.
Table of Contents
- Machine Operational Cycle and Kinematics Breakdown
- How the M-Type Turntable Wrapper Works
- Stretch Film Consumption & Cost Calculation
- Operational Scenarios: When Pallet Jack Loading Fits
- Controls, Ergonomics, and Safety Compliance
- Selection Checklist for M-Type Pallet Wrapper
- Engineering FAQ
- Next Steps & Technical Consultation
- Related Reading
- Engineering Sources & References
Machine Operational Cycle and Kinematics Breakdown
The demonstration highlights the automatic wrapping sequence of an M-type turntable stretch wrapping machine handling a high-cube palletized load:
- Floor-Level Pallet Infeed: The operator navigates a standard hand pallet jack directly into the open cutouts of the M-profile turntable, lowering the pallet onto the structural support base without requiring a drive-up ramp.
- PLC Cycle Initiation: Pressing the start button on the column-mounted control panel engages the programmable logic controller (PLC). The warning stack light signals cycle commencement.
- Variable-Speed Rotation & Film Delivery: The turntable accelerates via AC frequency inverter control. Concurrently, the film carriage travels vertically along the heavy-duty column structure, applying film at a constant pre-set stretch ratio.
- Controlled Cycle Termination & Home Alignment: Upon completing the pre-set top and bottom wrap counts, the carriage returns to its base elevation, the film tail is secured, and the turntable homes precisely to its starting position to align the slots for pallet jack extraction.
How the M-Type Turntable Wrapper Works
The operational sequence of the M-type stretch wrapper follows a structured engineering workflow:
| Sequence Phase | Operational Mechanism | Technical Detail |
|---|---|---|
| 1. Load Infeed | Pallet jack insertion | Hand pallet jack enters the M-slot turntable; load lowered onto platform. |
| 2. Cycle Start | Panel / Remote initiation | Operator selects program and presses Start; soft-start rotation begins. |
| 3. Automated Wrap | Dual-axis movement | Turntable rotates (0–12 RPM) while film carriage traverses vertically. |
| 4. Film Cut & Fix | Tail securing | Automatic film wipe/cut mechanism fixes film tail (or manual cut on standard models). |
| 5. Home Position Unload | Auto-alignment exit | Turntable stops at 0° home position; pallet jack lifts load clear of slots. |
Note: For fully automated operations requiring automatic film tail cutting and clamping without operator intervention, explore our pallet wrapping machine with automatic film cutting.
Loading via floor-level M-slots eliminates the massive floor footprint needed for 1.5 m–2.0 m external ramps, allowing the machine to be installed inside narrow warehouse staging aisles and near tight loading docks.
Stretch Film Consumption & Cost Calculation
Film usage per pallet load is determined by load perimeter, wrap overlap percentage, vertical carriage speed, and pre-stretch roller ratio.
Worked Engineering Example:
- Pallet Dimensions: 1,000 mm (W) × 1,200 mm (L) × 1,800 mm (H)
- Film Roll Width: 500 mm
- Vertical Overlap Ratio: 50% (effective band width = 250 mm)
- Pre-Stretch Ratio: 250% (1 m raw film yields 3.5 m applied film)
| Parameter | Calculation Formula | Applied Value |
|---|---|---|
| Pallet Perimeter | 2 × (1,000 + 1,200) mm | 4,400 mm (4.4 m) |
| Carriage Rise per Turn | 500 mm × (1 – 0.50) | 250 mm / turn |
| Vertical Passes (Up) | 1,800 mm ÷ 250 mm | 7.2 turns |
| Base & Top Reinforcements | 3 turns base + 3 turns top | 6.0 turns |
| Vertical Passes (Down) | Return pass to base | 7.2 turns |
| Total Revolutions | 7.2 + 6 + 7.2 | ~20 turns |
| Total Film Laid on Load | 20 turns × 4.4 m | 88.0 m |
| Actual Raw Film Paid from Roll | 88.0 m ÷ (1 + 2.50) | 25.1 m |
Key takeaway: Incorporating a 250% powered pre-stretch system reduces raw film consumption per pallet from 88 meters down to 25.1 meters, significantly lowering per-unit packaging material expenditure.
Operational Scenarios: When Pallet Jack Loading Fits
| Facility Constraint | Operational Problem | M-Type Wrapper Solution |
|---|---|---|
| Forklift-Free Zones | Floor space cannot accommodate forklift turning radii. | Hand pallet jacks roll directly onto the turntable at floor level. |
| Tight Staging Bays | Standard ramps block pedestrian or tugger traffic lanes. | Low-profile M-turntable eliminates external ramp extension. |
| Variable Pallet Heights | Frequent SKU changes require customized wrapping profiles. | PLC memory stores multiple wrap patterns (top/bottom wrap counts). |
| Unstable / Mixed Loads | High-center-of-gravity loads risk tipping during acceleration. | Inverter-driven soft start/stop prevents centrifugal displacement. |
For high-throughput facilities utilizing forklifts or integrated conveyor lines, refer to our heavy-duty turntable stretch wrapper B200.
Controls, Ergonomics, and Safety Compliance
Industrial stretch wrappers utilize high-inertia rotating masses and vertical moving carriages, requiring strict adherence to machine safety standards:
- Safety Distance & Clearance: Operators must remain outside the rotating perimeter during operation. Interlocked optical safety light curtains or floor mat sensors halt rotation instantly if a worker steps into the rotating zone.
- Harmonized Standards Compliance:
- ISO 12100:2010: Risk assessment and risk reduction methodology for industrial machinery design.
- EN 415-6:2013: Specific safety requirements for pallet wrapping machines, defining anti-crushing clearances and carriage fall-protection devices.
- EN 415-10:2014: General packaging machinery safety requirements, covering emergency stop circuits (Category 0 / Category 1 per EN 60204-1).
Selection Checklist for a Pallet Jack Loaded Pallet Wrapper
- Pallet Profile: Maximum load length, width, and diagonal dimension.
- Maximum Load Weight: Standard M-turntables support 1,500 kg (verify wheel load distribution).
- Pallet Jack Specs: Fork length, overall fork width, and steer wheel clearance (to match M-slot cutout width).
- Required Throughput: Target pallets wrapped per hour (PPH).
- Film Specification: Roll width (500 mm standard), thickness (17–25 µm), and film pre-stretch capability.
- Facility Infrastructure: Floor levelness tolerance, ambient temperature, and power supply (220V/380V, 50/60 Hz).
Engineering FAQ
Q: How is the M-type turntable loaded without a ramp? A: The turntable features structural cutouts matching standard hand pallet jack dimensions. The operator rolls the jack straight into the slots, lowers the pallet onto the platform, and backs the jack out.
Q: What prevents the pallet jack wheels from binding in the turntable? A: The turntable structure incorporates heavy-duty internal support rollers designed to support concentrated point loads from pallet jack steering and fork wheels.
Q: How much stretch film is consumed for a standard pallet load? A: For a 1,000 × 1,200 × 1,800 mm load with 20 turns and 250% pre-stretch, approximately 25.1 meters of film is drawn from the roll (yielding 88 meters applied on the load).
Q: Is operator intervention required during the wrapping cycle? A: Standard semi-automatic models require manual film attachment and cutting. Fully automatic versions incorporate pneumatic clamping, cutting, and wiping systems to automate film tail securing.
Q: Can an M-type wrapper also be loaded by forklift? A: Yes. Forklifts can place pallets directly onto the M-turntable. However, drivers must exercise care to avoid impacting the precision cutout edges.
Next Step & Technical Consultation
Our engineering team assists in selecting and customizing your packaging automation setup in three straightforward steps:
- Submit Layout & Load Data: Send your facility layout drawings, pallet dimensions, maximum weight, and throughput targets to info@fhopepack.com.
- Receive Technical Proposal: Obtain a comprehensive equipment specification, CAD drawing, and film consumption ROI calculation within 48 hours.
- Schedule Site Inspection: Arrange an on-site or virtual engineering consultation to verify floor conditions and pallet jack compatibility.
Related Reading
- Semi-Automatic Pallet Wrapping Machine Specifications
- Video Demo: Semi-Auto Pallet Stretch Wrapping Machine A100
- Video Demo: High-Profile Turntable Pallet Wrapper A200
Engineering Sources & References
- FHOPE Packaging Machinery Technical Engineering Team: Equipment Documentation & Kinematic Data (2026-10-04).
- ISO 12100:2010: Safety of machinery — General principles for design — Risk assessment and risk reduction. ISO Standard Reference
- BS EN 415-6:2013: Safety of packaging machines — Part 6: Pallet wrapping machines.
- BS EN 415-10:2014: Safety of packaging machines — Part 10: General requirements. NEN Standard Reference
Last Engineering Review: 2026-10-04
