Double Drum Electric Winch FAQ: Integration, Spare Parts and Maintenance Questions

Buyers and procurement teams regularly ask Shijiazhuang Junzhong Machinery Manufactruing Co., Ltd. about how its double drum electric winch range integrates into their existing equipment, what replacement parts are available, and how to keep units running reliably over time. The questions below address that cluster directly, drawing on confirmed specifications and product documentation for the LBS series.

1. What does a double drum electric winch consist of, and how does it integrate into a host machine?

LBS-series double drum electric winches are assembled from a flange, drum body (simplified body), pressure plate, rib plates, electric motor, and a cable-arrangement mechanism. The drum is driven through a gear reducer, which transfers motor torque efficiently to the rope-winding drum. Integration typically involves mounting the unit to the host machine's frame, connecting the electric motor to the machine's power supply, and routing the wire rope through the load-bearing path specified for the application. Because rope entry direction can be configured as either left-hand or right-hand, the unit can be adapted to the spatial constraints of different host machines.

2. What wire rope specifications are compatible with LBS double drum electric winches?

The LBS-series electric winch drums accept wire rope diameters from 3 mm to 200 mm and rope capacities from 10 m to 1,000 m (some drum variants accommodate up to 10,000 m). The rope groove type used is the Lebus (double fold-line) groove, which keeps the groove parallel to the flange end face over most of the drum circumference to guide multi-layer winding smoothly and prevent rope-biting. Confirm the specific rope diameter and capacity for your application when placing a custom order, as specifications can be adjusted.

3. How does the LBS (Lebus) groove system benefit multi-layer rope winding?

The LBS system controls the spooling of wire rope on the winch drum so that there is no practical limit to the number of layers that can be spooled safely, regardless of load severity, speed conditions, or rope and drum sizes. The double fold-line groove design means the groove intersects the flange end face in only a very small area of the drum circumference, minimising bending stress at that transition point. This arrangement eliminates rope-biting during winding and extends rope service life — a key maintenance benefit that reduces unplanned downtime.

4. What spare parts are available, and how does the lebus-built drum design reduce replacement costs?

A lebus-built drum is composed of a welded plain drum and a welded grooved shell (sleeve). In the event of groove wear or damage, only the outer sleeve needs to be replaced rather than the entire drum assembly, which significantly reduces repair costs and minimises equipment downtime. The drum overall structure includes the flange, simplified body, pressure plate, rib plates, gear ring, and lifting structure accessories — all of which are available for replacement. The MOQ for spare drum components is 1 piece, and specific configurations can be discussed with the technical team.

5. What operating temperature range applies to LBS electric winch drums, and why does it matter for maintenance planning?

Confirmed product data for LBS winch drum models specifies an ambient operating temperature of −40 °C to +45 °C and a storage temperature of −40 °C to +50 °C. Maintenance schedules should account for these limits: units deployed in cold climates (e.g., offshore platforms or northern mining sites) should be inspected for lubricant viscosity changes and seal integrity at the lower end of this range, while units in high-temperature industrial environments should not exceed the +45 °C ambient limit during operation. Always follow the specific model's documentation for lubrication intervals.

6. What certifications do LBS double drum electric winch products carry?

Depending on the specific model, LBS-brand engineering winch and drum units carry the following certifications: ISO 9001, CE, and CCS (China Classification Society). Not all models carry all three; for example, some engineering winch models carry ISO 9001/CE/CCS, others carry ISO 9001/CE only, and certain grooved drum components carry ISO 9001 or ISO 9001/CCS.

7. In which industries and applications are LBS double drum electric winches used?

Confirmed application areas include: offshore platform cranes, oil workover and drilling winches, logging rope winding equipment, wall-wiping machine winches, helicopter motor winches, port and wharf crane winches, tower crane winches, crawler crane winches, gantry crane winches, water conservancy projects, forestry operations, mining, and construction. The units support both material lifting and flat dragging tasks, and can serve as auxiliary equipment for certain automated operations. Marine and fishing-vessel applications (e.g., fishing net drum winches and anchor winches) are also documented.

8. Can LBS double drum electric winches be customised, and what is the minimum order quantity?

Customisation is confirmed: specifications including rope groove type, rope capacity, rope entry direction (left-hand or right-hand), colour, and overall structural configuration can be adjusted to match application requirements. The MOQ is 1 piece for engineering winch and drum units. Processing customisation is explicitly listed as available for relevant drum models. Buyers with non-standard requirements are encouraged to contact the technical team to discuss specific configurations before ordering.

9. What power sources are compatible with LBS drum winch units?

LBS drum winch and engineering winch units use electric motors as the primary power source. Select models also use hydraulic motor as an alternative power source. The 12 V electric motor option is available for certain drum winch variants.

10. What technical support and maintenance services does Shijiazhuang Junzhong Machinery Manufactruing Co., Ltd. provide after purchase?

Post-purchase support documented for LBS products includes troubleshooting, installation guidance, product advice, regular maintenance, repair, and replacement services. The company also offers assistance with customisation and upgrades. A standard warranty period of 1 year is listed for applicable engineering winch models. Buyers should contact the technical team directly for service scope, response arrangements, and any region-specific support terms.