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FD
RONWIN
The powered flexible expandable roller conveyor is a motor-driven conveying device whose length can be freely extended or retracted within a certain range. It uses rollers as the conveying medium, with a flexible expandable frame as the supporting structure, and drives the rollers to rotate via micro motors, thereby enabling automated material handling. This equipment combines powered conveying with adjustable telescopic functionality, making it an essential component in modern material handling systems.
The conveyor uses a flexible expandable frame structure with an extension ratio of up to 1:3. When not in operation, it can be significantly shortened to minimize floor space; when needed, it can be extended to the required length, maximizing space utilization.
The body can be easily steered to change conveying direction, and the conveying angle can be adjusted according to the actual cargo requirements. The support legs are height‑adjustable, and the system can be configured as straight or curved sections.
Equipped with lockable casters at the bottom, the conveyor can be conveniently moved to any work position and then securely fixed by engaging the brakes.
Designed as independent modular units, the conveyor can be combined and arranged as needed. A single unit consists of at least two sections.
The equipment is wear‑resistant, corrosion‑resistant, and has a long service life. Maintenance and servicing are straightforward. The precision‑bearing drive rollers offer low noise and extended durability.
It features large conveying capacity, long conveying distance, high load‑bearing capability, and adjustable rotational speed, enabling fast, uniform, and stable material transport.
Comparison with Fixed Roller Conveyors
| Length Adjustability | Yes (expandable/collapsible) | No (fixed length) |
| Mobility | Portable with wheels | Stationary |
| Installation | Plug-and-play, no setup needed | Requires permanent mounting |
| Space Efficiency | High (adjustable footprint) | Low (fixed space usage) |
| Best For | Dynamic, temporary workflows | High-volume, fixed layouts |
The main technical specifications of the powered flexible expandable roller conveyor are as follows:
| Parameter | Specification Range |
|---|---|
| Roller diameter | 50 mm (common standard) |
| Conveying line length | From 2000 mm to unlimited (recommended powered single‑section length ≤ 10 m) |
| Conveying width | 450 mm, 500mm, 600mm (other widths could be customized) |
| Conveying height | From 500 mm to 1000 mm |
| Line speed | 10 m/min to 40 m/min |
| Motor power (per section) | 90 W to 120 W |
| Load capacity | Approx. 70 kg/section |
| Roller material | Carbon steel (zinc‑plated), stainless steel, rubber‑coated, etc. |
The powered flexible expandable roller conveyor mainly adopts 3 types of roller, corresponding three primary drive methods.
(figure 1. Three types of standard rollers: Poly-v pulley driven roller, Toothed pulley driven roller, Grooved belt driven roller)
A groove is machined on the roller surface, into which an O‑ring belt is fitted for power transmission. The O‑belt drive operates smoothly with low noise, minimal environmental pollution, and allows high‑speed operation. It features a simple structure and low cost, making it the most commonly used drive method for powered telescopic roller conveyors.
A poly‑V‑belt is used for power transmission, offering smooth operation and relatively high load‑carrying capacity. The larger contact area between the belt and the rollers enables higher torque transmission.
A timing belt provides precise transmission with accurate speed ratio and zero slip, making it suitable for applications requiring high conveying accuracy.
| Feature | Synchronous Belt | Poly-V Belt | O-Belt (Round Belt) |
|---|---|---|---|
| Slip Resistance | ✅ No slip (positive drive) | ❌ Prone to slip under overload | ❌ High slip tendency |
| Precision | ✅ High (exact positioning) | ❌ Moderate (some creep) | ❌ Low (stretches/slips) |
| Efficiency | ✅ ~98% | ~95% | ~90-93% |
| Maintenance | ✅ Low (no retensioning) | ⚠ Moderate (wear on ribs) | ❌ High (frequent retensioning) |
| Load Capacity | ✅ High torque capability | ⚠ Good, but limited by friction | ❌ Low (suited for light loads) |
| Durability | ✅ Long lifespan (no stretch) | ⚠ Ribs wear over time | ❌ Prone to wear/stretch |
| Noise/Vibration | ✅ Low noise & smooth | ⚠ Can be noisy at high speeds | ❌ Whipping noise possible |
The conveyor offers two speed control modes:
The equipment runs at a constant speed, suitable for applications where a uniform conveying rate is required.
With a frequency inverter, the speed can be continuously adjusted, providing a speed ratio of up to 5:1 (typical range: 10–35 m/min). Variable‑speed control enables smooth starts, precise speed regulation, and energy‑saving operation, meeting diverse requirements for different conveying tasks.
The powered telescopic roller conveyor is widely used in the following areas:
Primarily used for loading and unloading goods in workshops, warehouses, and storage yards, as well as for receiving and dispatching goods at logistics distribution centers.
Applied in production packaging lines, temporary conveying lines, and other in‑plant material handling operations.
Suitable for parcel sorting and conveying in courier and express delivery services.
Extensively used in electronics, beverage, food, packaging, machinery, light industry, chemical, pharmaceutical, rubber/plastics, automotive, and motorcycle industries.
Ideal for cargo loading/unloading at ports, terminals, railway stations, airports, and other logistics hubs.
The conveyor is particularly well‑suited for transporting flat‑bottomed, uniform articles such as cartons and cases. It also handles various boxes, bags, pallets, and unit loads. Bulk materials, small items, or irregularly shaped goods should be placed on pallets or in totes before conveying.
