Setup: Flexlift Belt Lift Table Series RFK User Manual

Overview

The Belt Lift Table Series RFK is a heavy-duty belt-driven lift table designed for industrial transfer, assembly, and automation tasks. It uses a wedge-spreading mechanism and is built for high availability, frequent cycling, and efficient spare-part replacement.

This guide is intended for installers, commissioning technicians, and maintenance teams who need a clear, practical reference for setting up the Belt Lift Table Series RFK safely and correctly. The product is especially suited to plant environments where precise alignment, reliable lifting motion, and integration with conveyor systems are required.

Specifications

• Series: Belt Lift Table Series RFK
• Drive principle: Belt drive with wedge-spreading system
• Application range: Assembly lift tables to heavy-duty system lift tables
• Payload range in the product family: 500 to 12,000 kg
• Construction height range: 200 to 700 mm
• Lifting height capability: up to 6,000 mm depending on design
• Lifting speed capability: up to 600 mm/s depending on design
• Belts: Polyamide flat belts with steel tension members
• Operating mode: Suitable for industrial plant operation and automated material flow
• Maintenance feature: Individual belt tensioning and quick belt replacement

Detailed description

The Belt Lift Table Series RFK uses a mechanical belt-drive concept to move the lifting platform through a wedge-based spreading action. In practical terms, the belts transmit motion to the drive and winding shaft arrangement, creating a controlled vertical lift with a compact installed height.

The RFK platform is built for demanding industrial use, where fast cycles and dependable operation matter more than simple manual lifting. Its design supports integration into conveyor lines, transfer stations, and automated production cells. The belt system is arranged so each belt can be tensioned individually, which helps with commissioning and long-term serviceability.

Key functional parts referenced in the assembly guide include the lower frame, upper frame, winding shaft, motor or gear motor, limit switch column, belt clamping pieces, safety limit switches, and optional catching cylinder. The lower frame carries the main load and must be leveled precisely, while the upper frame forms the working surface or supports attached equipment such as conveyors.

For position control, the RFK can use adjustable sensors and a limit switch column. The assembly instructions also reference mechanical limit stops and safety-related switches that protect the table from overtravel. In configured systems, an optional catching cylinder can provide fall protection if a major drivetrain fault occurs.

Safety

Correct installation is essential for the Belt Lift Table Series RFK. Improper assembly, incorrect commissioning, or ignoring the setup rules can damage the lift table and void warranty coverage.

The base must be level, stable, and strong enough to carry the full system load, including the possibility of tipping in the worst-case scenario. Only qualified, trained personnel should perform assembly and commissioning. A proper control system must be present before the lift table is moved during setup, and the motor must never be connected directly to mains power without controls.

Special care is required during the first movement of the belts. The winding direction must be correct, and at least 1.5 to 2 turns must remain on the winding shaft. If the belts unwind fully and are recoiled incorrectly, hidden damage can occur and the belts must be replaced even if no external damage is visible.

Never operate the table beyond its permitted upper or lower limits. The top overrun switch and slack-belt switch are factory-set and sealed, and they must not be used as routine position switches. If the optional catching cylinder is fitted, it must be integrated into the controls as specified, and any catching event means the cylinder must be replaced.

Setup and operation

Before installation, prepare the site with a flat, load-bearing base and the required lifting equipment, measuring tools, drilling tools, torque wrench, welding machine, anchors, and shim plates. The lift table should be positioned carefully at the operating location without damaging the cables or belts.

Set the leveling bolts so they project downward before placing the table. After lowering it into position, place shim plates beneath the bolts so they do not press into the floor. Transport locks and cable ties used during shipping should be removed only when appropriate, and anti-twist protection on the winding shaft should remain until the motor is flange-mounted.

If a separate motor is used, it must be mounted exactly according to the approval drawing. The motor shaft and winding shaft must be aligned precisely for direct connection, and all fastening points must be tightened with a torque wrench. The motor plate must be securely anchored before the table is started.

When a limit switch column is used, place it at the planned position and fasten it to the floor. The switching flag on the upper frame must be adjusted to match the column, and tall columns or columns mounted on a steel structure should be braced to nearby components to prevent movement.

After wiring the controls, carry out a first test run. Move the table up and down several times without approaching the end positions, then check the top overrun switch from a safe distance. Lower the upper frame onto maintenance supports until the belts become slightly slack so the slack-belt switch trips correctly.

Precise leveling of the lower frame is critical. The maximum deviation is 1 mm per running meter, and twisting of the base frame is not allowed. Once the frame is aligned, anchor it to the base and support it continuously in the contact areas, running pulleys, and fixed scissor points using shim stacks that are welded together but not welded to the lower frame.

Attachments mounted on the upper frame, such as conveyors, must be aligned relative to the upper frame itself rather than the floor or lower frame. Any one-sided load in the transverse direction should be balanced with a counterweight on the opposite side.

Limit position adjustment is done through the sensors rather than by altering the mechanical stops. The bottom limit should be set with the table unloaded, and the transfer heights should be arranged so the receiving conveyor sits about 2 mm higher than the delivery side reference. The same rule applies when setting upper and intermediate positions.

Lubrication is limited because the standard bearings are maintenance-free. Light grease should be applied to the scissor roller contact surfaces and lift cam contact surfaces, while the cam roller system and guide profiles require lubrication. Where a Perma lubrication system is installed, activate it by turning the activation screw until the breaking point is reached and record the activation date. Without that system, the profile rollers must be greased manually.

After completion, perform a final inspection to confirm that the table is installed correctly and ready for operation. A full checklist is used to verify leveling, anchoring, belt condition, sensor function, lubrication, and overall operating safety. During initial service, slight pitting or discoloration in roller contact areas may appear and is considered normal.

Cleaning and maintenance

Routine maintenance for the Belt Lift Table Series RFK focuses on inspection, lubrication, and rechecking critical fasteners after the first operating period. The lower frame should be rechecked after about 20 operating hours, and floor connections should be tightened again.

Keep the belts, rollers, guide surfaces, and drive components clean and in good condition. The checklist calls for belts to remain intact, clean, straight, and free from dirt, and for the roller surfaces and bearings to be cleaned and greased as required. Automatic lubrication, if fitted, should be confirmed as functional.

The drive train bolts and nuts should be checked, tightened, and marked. Cable routing must remain undamaged, strain reliefs must stay secure, and labels such as the load-capacity plate and rating plate must remain legible. If bellows or cover plates are installed, they should stay properly fixed and free from flapping.

Troubleshooting

If the lift table does not move correctly during the first run, the most likely causes are incorrect belt winding direction, missing control logic, or an unprepared safety input. If the belts have been wound in reverse after full unwind, the belts must be replaced rather than reused.

If the table overtravels at the top or bottom, stop operation immediately and check the sensor settings, safety switch function, and control integration. The mechanical top and bottom limits should not be used to correct a failed control setup, and the table must never be run with inactive safety switches.

Jerky movement, tilting, or unusual noise usually points to leveling errors, missing bolstering, poor frame alignment, or drivetrain issues. The checklist also highlights belt tension imbalance, worn bearings, incorrect roller position, and insufficient lubrication as items to inspect when operation is not smooth.

For optional fall-protection systems, any catching-cylinder event requires replacement of the cylinder. A leaking cylinder, faulty nitrogen expansion tank, or loose fittings should also be treated as service faults.

Warranty

Warranty protection depends on correct assembly, commissioning, and use in line with the manufacturer’s instructions. Damage caused by improper installation, incorrect belt handling, or unauthorized adjustment of factory settings can lead to loss of warranty coverage.

Pros & Cons

• Pros: Strong industrial design, compact belt-drive lifting concept, high lifting range, and suitability for conveyor integration.
• Pros: Individual belt tensioning and quick belt replacement improve serviceability.
• Pros: Factory-set safety and positioning elements simplify correct commissioning when the instructions are followed.
• Cons: Installation is precision-sensitive and requires trained personnel, proper controls, and careful leveling.
• Cons: Incorrect belt winding or limit-setting errors can cause serious damage and require replacement parts.
• Cons: Optional systems such as catching cylinders and automatic lubrication add setup complexity.