2000kg Constant Tension Manual Winch | Mechanical Overload Clutch | Manufacturer Direct for Floating Platform Anchoring
Water Level Dropping? Your Floating Platform Is Drifting. This 2000kg Manual Winch Pays Out Cable Automatically.
No Electricity. No Sensors. Pure Mechanical Constant Tension.
The Scenario:
You operate a floating platform, pontoon, or work barge on a lake, reservoir, or coastal area. The platform is anchored to a shore-mounted fixed post with a steel wire rope. Water levels fluctuate due to tides, flood discharge, or rainfall.
When water level drops: The anchor rope goes slack. Your platform drifts off station.
When water level rises: The rope suddenly becomes overloaded.
The Consequence of Using a Standard Winch:
Slack rope → Platform drifts away from the working position
Manual rope adjustment required every shift → Labour intensive and imprecise
Sudden overload → Rope breakage or anchor post failure
Corrosion in wet environments → Premature equipment failure
The Root Cause: A fixed-length anchor rope cannot adapt to changing water levels.
✔ The Solution: A winch that automatically pays out rope when tension exceeds the rated load, and locks when tension returns to normal.
Client Core Technical Requirements
Floating platform owners typically demand:
1️⃣ Automatic rope payout when water level drops – No manual intervention.
2️⃣ Constant tension maintenance – Rope stays within a preset force range.
3️⃣ Zero power dependency – The floating platform has no electrical supply.
4️⃣ Corrosion resistance – Equipment must survive wet, humid outdoor conditions.
5️⃣ Simple operation – Field workers can learn it quickly.
KLD Customised Solution: Constant Tension Manual Winch
KLD Winch delivers a 2000kg rated manual winch with a mechanical overload clutch on the first shaft.
How It Works:
Overload clutch on the first shaft – Preset to release at the rated load.
When passive rope tension exceeds rated load – The overload clutch automatically opens, releasing torque. The drum rotates freely and pays out rope.
When torque drops back to rated load – The clutch closes and re-establishes the connection. The drum locks.
Pure mechanical logic. No sensors. No power supply. No control system.
Additional Features:
Three-stage gear reduction – Reduces hand crank force at the bottom layer to 106 N·m for a 2000kg rated pull.
Ratchet brake – Holds the load stationary. Prevents accidental reverse rotation.
Stainless steel wire rope + stainless steel hook – Standard configuration for corrosive environments.
Adjustable handle – Handle length can be modified to suit different operator heights and habits.
Core Technical Parameters
| Parameter | Value |
| Model | 2000kg Constant Tension Manual Winch |
| Rated Pull | 2000 kg |
| Wire Rope Diameter | 12 mm |
| Wire Rope Length (Standard) | 60 m |
| Hand Crank Force at Bottom Layer | 106 N·m |
| Constant Tension Mechanism | Overload clutch on first shaft |
| Braking System | Ratchet brake |
| Reduction | Three-stage gear reduction |
| Length (Dimension A) | 798 mm |
| Width (Dimension B) | 721 mm |
| Height (Dimension C) | 613 mm |
| Rope Material | Stainless steel |
| Hook Material | Stainless steel |
| Handle | Adjustable length |
Design Highlights
✔ Mechanical overload clutch – The core constant tension component. Opens automatically at overload. Closes when torque returns to rated value. No electronic parts.
✔ Three-stage gear reduction – Delivers 2000kg rated pull with 106 N·m hand crank force at the bottom layer. Operation is smooth and labour-saving.
✔ Ratchet brake – Holds the load securely. Prevents accidental sliding or reverse rotation.
✔ Stainless steel wire rope + hook – Standard stainless steel configuration. Suitable for salt spray and corrosive environments. Ensures long-term use in extreme conditions.
✔ Adjustable handle design – Handle length adjusts to different operator heights and usage habits. Improves operating comfort.
Application Scenarios
Floating platform or pontoon anchoring
Work barge station keeping
Reservoir or lake mooring systems
Coastal area floating structures
Any application requiring constant tension with changing water levels
Installation: Winch mounted on floating platform. Wire rope end secured to shore-mounted fixed post.
Operation: When water level drops, the winch automatically pays out rope and maintains constant tension. The floating platform or pontoon stays in its original position.
Project Value
This constant tension manual winch delivers:
Automatic tension compensation – No manual rope adjustment required when water levels change.
Position stability – Floating platform remains on station.
Overload protection – Clutch releases torque before rope or anchor fails.
Corrosion resistance – Stainless steel rope and hook for wet environments.
Labour saving – Eliminates frequent manual rope adjustments.
Customisation Information
The 2000kg model shown above is a standard configuration. KLD Winch supports customisation based on specific customer requirements:
Customisation dimensions include:
Load capacity
Pay-out speed
Rope length
Control method
Rope exit direction
Material selection
Additional customisation: Customers can discuss specific usage scenarios with our engineers. Further design and configuration available for:
Product protection performance
Durability requirements
Safety features
Request a Quote
Company: Beijing Tianheng Kairui (KLD Winch)
Why Source from KLD Winch:
Manufacturer Direct – Factory pricing. No distributor markups.
Customised according to CAD/PDF drawings – Send your drawings. We manufacture to your specifications.
Key component reliability – Three-stage gear reduction and overload clutch are core in-house designs.
Contact: Visit the website and use the contact form for a technical discussion and a dedicated quotation.
FAQ
Q1: Does this winch support customisation?
A1: Yes. Customers can customise load capacity, rope length, control method, rope exit direction, material, and other parameters. Discuss your specific requirements with our engineers.
Q2: What is the maximum rated pull available?
A2: The case above shows a 2000kg model. Custom configurations are available for different load capacities. Contact our engineers with your specific requirements.
Q3: Does the winch require electricity to operate the constant tension function?
A3: No. The constant tension function is purely mechanical, using an overload clutch on the first shaft. No power supply is required. The winch can operate on floating platforms with no electricity.
Q4: What environments is this winch suitable for?
A4: The standard configuration includes stainless steel wire rope and stainless steel hook, making it suitable for salt spray and corrosive environments. Additional protection configurations are available through customisation.
Q5: Does KLD Winch provide technical support?
A5: Yes. KLD Winch provides engineering support for customisation and configuration. Contact our team to discuss your specific usage scenario and requirements.
Note: The parameters shown above (2000kg rated pull, 12mm wire rope diameter, 60m rope length, 106 N·m hand crank force, 798×721×613 mm dimensions) are based on the standard case configuration. Custom configurations will have different specifications.
