Friction Winch 500kg Twin Drum Capstan Type 4kW | KLD

A friction winch built for reciprocating traction duty. The drums are arranged side by side in a parallel layout, which keeps the unit compact and saves installation space. An electromagnetic braked motor drives through a three-stage gear reducer with same-side drum output, and a mechanical height limit switch sets the stop position. Case model PJM-500: rated pull 500 kg, rope Ø8 mm, 4.0 kW, 31 m/min.

Quick Specs

Model: 500KG  |  Rated pull: 500kg  |  Steel wire rope: Ø8mm
Motor power: 4.0KW  |  Drum speed: 64rpm  |  Average rope speed: 31m/min
Supply: 3P/380V/50Hz  |  Machine weight: 95KG
Outline (A length × B width × C height): 394 × 645 × 296 mm

Application Scenarios and Applicable Boundaries

- Reciprocating traction duty — the friction (capstan-type) principle drives the rope by friction, which suits repeated back-and-forth pulling rather than winding a fixed rope length onto a drum.
- Space-constrained sites — the parallel twin-drum layout keeps the unit compact and saves installation space.
- Line pull for pulling or positioning loads — rated pull 500 kg at an average rope speed of 31 m/min.
- Sites needing a settable stop position — the mechanical height limit switch sets the stop position on site, which helps reduce the risk of over-travel.
- Duty that benefits from controlled stopping — the electromagnetic braked motor brings the drive to a stop in a controlled way.

Boundary: the case configuration is rated pull 500 kg, rope Ø8 mm, motor 4.0 kW, drum speed 64 rpm, average rope speed 31 m/min, supply 3P/380V/50Hz, machine weight 95 kg, outline 394 × 645 × 296 mm. This is a reference configuration. Before ordering, confirm: required line pull, rope speed, rope diameter, rope length required for the application (see module 6.4 — a friction winch has no drum rope capacity), duty classification, control mode, supply voltage, and mounting interface.

Features Benefits

Electromagnetic braked motor — brings the drive to a controlled stop, which supports steady running and more stable handling.
Three-stage gear reducer with same-side drum output — higher transmission efficiency, able to carry heavier duty, which helps reduce mechanical wear and extend service life.
Mechanical height limit switch — the stop position can be set to suit the site, which helps prevent over-travel and improves both safety and efficiency.

Complete Technical Specifications

Size Installation and System Interface

Outline (case 500KG): A 394 × B 645 × C 296 mm. Machine weight 95 kg.
Layout: parallel twin drum — the two friction drums sit side by side with the motor and three-stage gear reducer on the base plate; the reducer outputs to the drum on the same side.
Base plate: bolt-down base plate with 4-Ø16 mounting holes (drawing). Hole spacing coordinates are not stated — confirm on the approved drawing before site drilling.
Rope path: the rope is pulled by friction over the drum; confirm the number of wraps, the rope entry/exit direction and the take-up or tail-rope arrangement for your layout.
Electrical: 4.0 kW motor, 3P/380V/50Hz. Confirm starting method, control mode, required protection and earthing for the site.
Brake: electromagnetic braked motor; confirm required brake torque and holding duty.
Limit: mechanical height limit switch; stop positions set on site.

Control Safety and Protection

- Brake: electromagnetic braked motor — brings the drive to a controlled stop.
- Travel limit: mechanical height limit switch with a settable stop position — helps prevent over-travel.
- Drive train: three-stage gear reducer with same-side drum output — helps reduce mechanical wear.
- Drive: 4.0 kW, 3P/380V/50Hz.
- Friction principle: the rope is held by friction over the drum. In practice the achievable line pull depends on rope condition, number of wraps and the tail load — these must be specified by the user for the application.
- Recommended to confirm: duty classification, brake torque and holding requirement, upper/lower limit arrangement, rope condition monitoring, emergency stop, and the electrical protection and earthing for the site.
- Optional: pulley, slack-rope switch, limit switch, manual emergency crank, grooved drum, pendant remote control, encoder with main-shaft limit switch, slip ring, VFD control panel, class certificates (LRS / BV / ABS / DNV GL).

Customization Options and Engineering Process

Configured around your operating conditions — Share the required lifting load, rope travel and diameter, operating speed, duty cycle, power supply, installation envelope and environment. KLD will review the application and provide a proposed configuration, technical drawing and quotation for approval.
Requirements → Concept → Drawing & Quotation → Approval → Production & Test → Delivery

Standards Testing and Quality

The company operates an ISO 9001 quality management system. CE conformity documents (LVD, EMC) are available for applicable configurations on request.

Factory testing follows the approved technical specification for each configured unit and may include: no-load run, rated-load operation, twin-rope synchronization check, limit function and control verification. Available documentation may include dimensional drawings, electrical diagrams, inspection records and functional test results, depending on project scope.

Engineering Cases

a construction project needed repeated back-and-forth traction at a fixed location, with limited space around the base.

Solution: friction winch, case model PJM-500 (500KG) — parallel twin-drum friction drive on a bolt-down base plate, electromagnetic braked motor, three-stage gear reducer with same-side drum output, mechanical height limit switch. Rated pull 500 kg, rope Ø8 mm, motor 4.0 kW, drum speed 64 rpm, average rope speed 31 m/min, supply 3P/380V/50Hz, machine weight 95 kg. Outline 394 × 645 × 296 mm.

Outcome: the compact parallel layout fitted the available space, the stop position was set on site with the mechanical limit switch, and the unit was accepted for the traction duty.

Technical Data Download

Downloads:
- Product Datasheet (PDF)
- General Arrangement Drawing (PDF)
- Installation & Operation Manual (PDF)
- Request CAD / Electrical Drawing

Delivery Packaging and Lifecycle Support

Most winches are custom-made products; lead time is confirmed after technical approval and order review. Project support can include configuration review, drawing approval, factory testing, export packaging, remote commissioning support and recommended spare parts. On-site measurement and installation support are available for applicable projects.