Belt Haul-Off Machine for Small Plastic Pipes and Profiles

Belt Haul-Off Machine for Small Plastic Pipes and Profiles

Designed for precision downstream handling, this belt haul-off machine provides steady traction for small-diameter plastic pipes and custom PVC/PP/PE profiles. With synchronized servo or VFD drive control, low-slip polyurethane belts, and closed-loop speed regulation, it ensures stable line speed, smooth surface finish, and accurate cutting lengths across continuous extrusion lines.

Product Features

Distinct Advantages

• Constant traction stability: dual-belt haul-off with independent drive control maintains uniform pulling force, minimizing ovality and wall-thickness fluctuation for small tubes and profiles.
• Low-slip contact surface: wear-resistant PU or silicone rubber belts deliver high friction and gentle contact to protect glossy or soft surfaces.
• Closed-loop speed control: encoder feedback and VFD/servo synchronization ensure precise line speed matching with the extruder and cutter, reducing length variance.
• Quick-adjust mechanism: handwheel or motorized vertical adjustment adapts to different product heights; side guides prevent lateral drift.
• Quiet, clean operation: optimized gearbox and damped frame reduce vibration and noise; optional dust covers keep the workspace clean.

Materials & Process Compatibility

• Compatible with rigid and flexible polymers: PVC, uPVC, PP, PE, PA, TPE, and small composite profiles.
• Supports hot extrusion downstream with heat-resistant belts and adjustable nip pressure for freshly formed surfaces.
• Smooth acceleration/deceleration sequences prevent micro-scratches and deformation during start/stop events.

Production Workflow Integration

• Positioned after cooling/calibration tank; synchronizes with laser gauges and cutting saw for consistent length accuracy.
• Simple recipe-based setup for belt pressure, speed, and contact length; stores product parameters for rapid changeovers.

Application Areas

Building & Construction

• Small conduit and casing pipes, drip irrigation tubes, window bead profiles, sealing carriers, and decorative trims.

Furniture & Interior

• Cable trunking, skirting mini-profiles, corner guards, and lightweight edging strips.

Automotive & Mobility

• Vacuum lines, washer tubes, wire protection conduits, and interior trim carriers requiring scratch-free haul-off.

Industrial & Utilities

• Pneumatic and fluid micro-tubes, sensor cable sheaths, and instrument protection profiles for OEM lines.

Technical Specifications

Performance & Capacity

• Speed range: 0.2–25 m/min (configurable up to higher speeds depending on application).
• Product size window: typical OD 3–40 mm for pipes; comparable cross-sections for small profiles.
• Length accuracy support: when paired with encoder and cutter, cut-length deviation can be maintained within ±0.5–1.0 mm (application dependent).

Equipment Configuration

• Dual endless belts with adjustable contact length; PU/silicone options and hardness grades (e.g., 60–80 Shore A).
• Independent upper/lower belt drives via servo motors or high-precision VFDs with digital synchronization.
• Pneumatic or spring-loaded nip pressure system with analog display for repeatable settings.
• Rigid welded frame, linear guides, and quick-release covers for maintenance access.
• Integrated control panel with PLC/HMI, recipe storage, and external line-speed analog/digital inputs.

Energy & Utilities

• Power: 2.2–5.5 kW installed (varies with belt width, torque, and speed option).
• Voltage: 380–480 V, 3-phase, 50/60 Hz; other voltages on request.
• Air: 0.5–0.7 MPa for pneumatic clamping and pressure control.

User Recognition

Customer Feedback

• Operators report noticeably smoother surfaces on glossy PVC and PP products, reduced length variance, and fewer start-up rejects.
• Maintenance teams value the modular belt cassette for fast replacement and the clean cable routing for easy troubleshooting.

Case Highlights

• A micro-tube producer improved cut-length precision by 35% after upgrading to encoder-synchronized haul-off control.
• An automotive supplier reduced cosmetic defects on interior trim carriers by switching to silicone belts and optimized pressure profiles.

Market Performance

• Strong adoption in drip irrigation, conduit, and OEM micro-tube lines due to stable traction, low maintenance, and competitive total cost of ownership.