Reverse Power and Free Conveyor
Hangzhou Ocean Industry Co., Ltd. is one of the most experienced manufacturers and suppliers of reverse power and free conveyor in China. Welcome to wholesale customized reverse power and free conveyor at competitive price from our factory. Good service and quality products are available.
Product description
Leading supplier of heavy duty reverse power and free conveyor systems since 2005. Custom engineering for automotive painting & cleanroom handling. Get a free layout design!
Advanced WJ Series Floor Mounted Material Handling Solutions. Designed for contamination-sensitive environments, providing precise positioning and heavy-load stability for your production line.
The principle of reverse accumulation is basically the same as that of ordinary accumulation, except that the accumulation and discharge line is applied on the ground in reverse. Since the workpiece is mounted on the trolley, the lubricating oil and dirt on the track, the traction chain and the process bracket will not fall off. Onto moving workpieces, thus minimizing contamination of the work.At the same time, the operator is not affected or interfered by the spreader when working. It is suitable for manipulator operation and is an ideal conveying equipment in the coating industry.
Reverse product-stacking conveyor
Technical Specifications
|
| Parameter | Reverse Power and Free | Standard Power and Free |
| Track Orientation | Floor-mounted (mechanics below workpiece) | Overhead-mounted (mechanics above workpiece) |
| Contamination Risk | Minimal - oil/debris fall away from workpiece | Higher - potential drips onto product surface |
| Operator Access | Unobstructed - spreader below | Obstructed - spreader and chain above workspace |
| Ideal Application | Automotive painting, cleanroom, electronics | General material handling, warehousing, drying ovens |
| Workpiece Orientation | Inverted mounting on trolley | Upright or suspended mounting |
| Space Utilization | High - floor-level accumulation saves vertical clearance | Moderate - requires overhead clearance for rail/chain |
| Robot Compatibility | Full - unobstructed path for robotic arms/manipulators | Limited - overhead chain may interfere with robot envelope |
| Max Working Temperature | Up to 250°C (curing oven compatible) | Up to 200°C (standard coating line) |
To ensure 24/7 operational reliability, Ocean Industry provides a standardized maintenance schedule:
Maintenance Cycle Reference
| Interval | Inspection Item | Action | Est. Downtime |
| Daily | Drive unit vibration, tensioner pressure | Visual check, log readings | 5 min |
| Weekly | Auto-lubrication system function | Verify oil flow, refill reservoir | 15 min |
| Monthly | Track joint alignment, chain elongation | Measure with caliper, adjust tension | 30 min |
| Quarterly | Wide push rod alignment, trolley wheel wear | Replace wheels below 2mm tread depth | 2-4 hours |
| Annually | Full system recalibration, bearing replacement | Comprehensive overhaul per OEM manual | 1-2 days |
WJ-Reverse Series - Technical Parameter Table
| Model | Chain Pitch | Track Type | Max Load/Trolley | Accumulation | Drive Type | Temp Range | Control |
| WJ-R150 | 150mm (6") | Enclosed Rail/I-Beam Hybrid | 500 kg | Pneumatic stop | Cycloidal reducer | -20~200°C | PLC/Relay |
| WJ-R200 | 200mm (8") | I-Beam | 1,000 kg | Pneumatic stop | Cycloidal reducer | -20~250°C | PLC/Relay |
| WJ-R250 | 250mm (10") | I-Beam | 2,000 kg | Electric stop | Helical bevel reducer | -20~250°C | PLC/VFD |
Application Scenarios for Reverse Power and Free Conveyors
Automotive Painting Lines (涂装线)
The reverse power and free conveyor is the preferred choice for automotive e-coat and topcoat lines. Because the traction chain and running gear sit below the workpiece plane, lubricating oil, dust, and debris cannot contaminate the wet paint surface during transport. This design eliminates the need for drip pans and shielding commonly required on standard overhead systems, reducing both installation cost and maintenance complexity. Major automotive OEMs specify floor-mounted reverse accumulation systems for Class-A surface finishing where even a single oil spot can result in a costly repaint.
Electronics and Cleanroom Handling
In semiconductor and PCB manufacturing, particle contamination is measured in parts per billion. The reverse conveyor's inverted trolley design ensures that no mechanical particulate drifts downward onto sensitive components. When paired with a stainless steel enclosed track and food-grade lubricant, the system achieves ISO Class 5 cleanroom compatibility, making it suitable for wafer transport, LCD panel handling, and precision optical assembly.
Robotic Workstation Integration
Since the reverse conveyor positions all mechanical elements below the workpiece, the entire upper hemisphere above the product is clear for robotic arm operation. This is critical for welding robots, adhesive dispensers, and inspection cameras that require 360-degree access. The system can be synchronized with PLC-controlled stop positions to achieve ±2 mm repeatable indexing accuracy for automated pick-and-place.
How to Select the Right Reverse Power and Free System
When specifying a reverse power and free conveyor, consider three key factors: (1) Workpiece weight and dimensions - choose WJ-R150 for parts under 500 kg, WJ-R200 for 500–1,000 kg, and WJ-R250 for loads up to 2,000 kg. (2) Temperature exposure - standard systems handle up to 200°C; for curing ovens above 200°C, specify the high-temperature variant with heat-resistant chain pins and bearings. (3) Accumulation frequency - if your process requires frequent stop-and-go (more than 10 stops/hour), opt for pneumatic stop cylinders for faster response; for less frequent accumulation, electric stops offer lower energy consumption.
How Reverse Power and Free Systems Optimize Your Floor Space
Unlike traditional overhead systems, the WJ Series Reverse Power and Free Conveyor is floor-mounted. It utilizes a dual-track design: a lower "Power" track for the continuous forged chain and an upper "Free" track for the carriers.
Contamination-Free: By moving the mechanics below the workpiece, it eliminates oil drips and debris from falling onto products-critical for high-end automotive painting and electronic assembly.
Structural features
Unique track system: Special high - strength materials ensure wear resistance and stability. The track, designed considering reverse transport mechanics, has appropriate slope and curvature for smooth reverse movement of materials, avoiding slipping or jamming. Its interfaces are precisely processed for tight connection, reducing noise and wear from unevenness.
Efficient transmission mechanism: Equipped with high - performance chains or belts selected according to scenarios and material. Transmission components have good tension adjustment, maintaining stable efficiency for material transport. The drive device combines an advanced motor and reducer for powerful, stable output. The motor can adjust speed to meet production line tempo.
Flexible accumulation device: A unique mechanism allows orderly material accumulation during transport. The device, using pneumatic or electric control, responds quickly to commands for precise operations. The compact accumulation unit adapts to different material sizes and shapes, enhancing equipment universality and adaptability.
Performance advantages
Efficient reverse transport: Quickly and stably achieve reverse material transport, enhancing production process flexibility. In relevant scenarios, it shows excellent performance and shortens material turnover time.
Precise accumulation control: The device's high - precision control ensures accurate material accumulation, avoiding chaos and errors, improving production quality and reducing accidents and waste.
High reliability: Quality design and parts result in high reliability. Stable performance, low failure rate, reduced costs, and ensured production continuity.
Strong adaptability: Suitable for various materials. Customizable according to environment and characteristics to meet user needs.
Need a Custom Conveyor Layout for Your Finishing or Painting Line?
We don't just sell equipment - we engineer efficiency.
Every production facility has unique spatial, throughput, and process constraints. For standalone coating, finishing, or painting systems, our engineering team delivers tailored solutions that integrate seamlessly into your operation.
We provide:
Custom Layout Design – Optimized for your floor space, workflow, and accessibility.
Throughput & Cycle Time Analysis – Ensuring your finishing line meets production targets without bottlenecks.
Process Integration – Smooth connection with pretreatment, curing, drying, or material handling systems.
Ergonomics & Safety – Designed for operator comfort and compliance with industry safety standards.
Future-Proof Flexibility – Layouts that allow for easy expansion or reconfiguration as your needs evolve.
Let us design a finishing conveyor system that doesn't just move products - it advances your productivity.
Why Choose Ocean Industry for Your Reverse Conveyor Project
With over 20 years of experience designing and manufacturing overhead and floor-mounted conveyor systems, Ocean Industry has delivered more than 300 conveyor installations across automotive, electronics, and general industrial sectors. Our engineering team provides complimentary preliminary layout designs within 5 business days, including throughput analysis, cycle time optimization, and 3D renderings of your proposed line configuration. Every system ships with a detailed maintenance manual, spare parts list, and a 12-month warranty covering all drive and structural components.
Request a Free Layout Design for Your Finishing Line - Send your plant layout and process requirements to oceanindustry@vip.163.com
FAQ
Take Action Now!!!
Claim Your Customized Production Line Layout Plan!
Send us your plant layout drawings and process requirements. Our engineering team will deliver a free, high-value preliminary layout design within 5 business days, visually demonstrating how reverse power and free technology can optimize your painting or finishing line.
Let our conveyor system do more than move products-let it enhance your core competitiveness.
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