LYFOOCRANE Coordinated Lifting Systems
PLC-Controlled Servo Double-Drum Winch for Two-Line Motion
A programmable industrial winch developed for projects that need two rope lines to move from one compact drive platform. Servo control, grooved drums and configurable travel limits support smoother starts, controlled stopping and repeatable dual-line handling.
One Drive Platform, Two Controlled Rope Lines
A double-drum arrangement can simplify equipment that uses two lifting or pulling points. The servo drive regulates the motion profile, while the PLC manages operating sequences, direction commands, stop positions and machine interlocks. Grooved drum surfaces help maintain a defined rope path and reduce crossover during normal operation.
Dual-Line Handling
Operate two rope lines from a purpose-built double-drum mechanical arrangement.
Servo Motion Profiles
Program acceleration, working speed, approach speed and controlled deceleration.
PLC Coordination
Integrate commands, limits, faults and interlocks with the host machine or production line.
Project-Specific Layout
Configure rope direction, drum grooves, mounting points and control logic for the installation.
Functional System Design
Drive
Servo Motor Control
Provides responsive speed control and repeatable motion within the approved load cycle.
Logic
PLC Operating Sequence
Coordinates motion commands, travel references, process permissions and fault response.
Transmission
Hardened-Gear Reducer
Matches servo motor output to the required drum torque and rope speed.
Rope Control
Grooved Double Drums
Guide the two rope lines according to the selected winding direction and working travel.
Travel
Four-Point Limit Arrangement
Provides adjustable travel references for the operating sequence and over-travel strategy.
Interface
Machine Integration
Supports local controls or integration into a wider PLC-controlled equipment system.
General Product Configuration
| Design Item | Configuration |
|---|---|
| Product Type | Industrial servo double-drum winch |
| Motion Control | Servo drive with PLC-programmed operating logic |
| Gear Reduction | K-series hardened-gear reducer or project-specific equivalent |
| Drum Arrangement | Two grooved drums configured for the required rope direction |
| Travel References | Four-point adjustable limit-switch system |
| Power Supply | Single-phase or three-phase AC, selected for the project |
| Customizable Items | Capacity, speed, rope specification, drum geometry, rope direction, control mode and mounting |
500 kg Reference Configuration
The following values were supplied for one example model. Final rope storage and usable travel must be confirmed from the approved drum drawing.
| Rated Capacity | Wire Rope Diameter | Published Rope Length | Motor Power | Gear Ratio | Nominal Rope Speed |
|---|---|---|---|---|---|
| 500 kg | 6 mm | 11 m | 1.1 kW | 56.83:1 | 11 m/min |
Data confirmation required: The source also states a drum rope capacity of 5 m, which conflicts with the listed 11 m rope length. Confirm whether these figures refer to supplied rope, usable travel, rope per drum or another condition before publication or quotation.
| Model | Length (A) | Width (B) | Height (C) |
|---|---|---|---|
| 500KG | 1,367 mm | 339 mm | 245 mm |
Reference Dimensions
Drawing applies to the reference model. Final dimensions depend on the required capacity, rope storage, drum spacing and mounting arrangement.
Coordinated Drums vs. Verified Synchronization
Two drums rotating together do not automatically guarantee equal rope movement at both lifting points. Effective drum diameter, rope layers, groove geometry, rope stretch, reeving and unequal loads can create position differences. If the application has a defined synchronization tolerance, it must be stated and verified as a system requirement.
Typical Project Applications
Two-Point Equipment Lifting
Raise non-personnel fixtures or machine components using two engineered lifting points.
LED Screen and Display Handling
Control both sides of suspended display structures when level movement is required.
Industrial Positioning
Move frames, fixtures or workpieces with programmable travel and controlled speed.
Research and Test Systems
Provide repeatable dual-line motion for test rigs and experimental equipment.
Stage and Venue Equipment
Adjust non-personnel lighting, display or scenery systems after application-specific engineering.
Custom OEM Machinery
Integrate a compact two-line winch into purpose-built handling and automation equipment.
Engineering Options
Safety Is Defined by the Complete Lifting System
Travel limits help control the working range but do not replace load-rated brakes, overload protection, rope monitoring, structural verification, guarding, emergency stopping or a site-specific risk assessment. This equipment is not intended for lifting people unless it is separately designed, certified and approved for that purpose.
Information Needed for Selection
Double-Drum Project FAQ
Does a double-drum winch guarantee perfectly synchronized lifting?
No. It can provide mechanically coordinated drum rotation, but equal linear rope movement depends on drum geometry, rope layers, reeving, stretch and load distribution. The permitted synchronization error must be specified and tested.
Can the rope directions be customized?
Yes. Drum grooves, fleet direction and rope exit orientation can be designed around the equipment layout and required motion.
Can this winch connect to an existing PLC?
Yes, after the protocol, electrical standard, I/O list, operating sequence and safety boundaries are defined.
How do we confirm the required rope capacity?
Provide the working travel, reeving, dead wraps, termination method and spare length. The final drum drawing should identify usable rope storage for each drum.
Can it lift an LED screen without tilting?
It can be engineered for two-point screen handling, but level tolerance depends on the complete rigging system, load balance, drum geometry and feedback strategy. Commissioning tests are required before operation.
Custom Two-Line Winch Engineering
Define Both Rope Paths Before Selecting the Winch
Send LYFOOCRANE your load distribution, rope travel, point spacing, synchronization tolerance, speed and control requirements. We will review the complete arrangement and prepare a project-specific proposal.
Images and reference specifications are provided for preliminary selection. Final ratings, rope capacity, synchronization performance, dimensions, controls and safety provisions are subject to engineering confirmation.