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Q355E Carbon Steel LBS Split Sleeve High Precision LEFT-HAND 35° For 34mm Wire Rope Drum Sleeve
1.Product Description
Independently developed for lifting winches and cranes, LBSS-Series LBS Sleeves serve as core wear-resistant parts that isolate steel wire ropes from drum bases to prolong drum service life and maintain stable operation of lifting machinery under severe working conditions. Equipped with exclusive standard grooves and integrally CNC milled with tight dimensional tolerances, these sleeves seamlessly fit both new and worn drums and effectively avoid rope tangling, biting and slipping during multi-layer winding. Customers can select carbon steel, stainless steel or nylon materials and customize left/right grooving directions, with bolt assembly and field welding two optional installation methods to suit diverse harsh environments.
2.Technical Parameters:
Attribute
Value
Product Name
LBS Split Sleeve
Application
Offshore
Rope Diameter
34mm
Rotation Direction
Left
Usage
Shipyard Offshore Port And So On
Application Range
Offshore Winch
Galvanized
Yes
Material
Carbon Steel
Product Type
Industrial Hydraulic Winch, Electric Rope Winch
3.Core Product Advantages
The first core advantage is drastically reduced overall equipment operation and maintenance cost. Traditional worn drums have to be replaced entirely with long processing cycle and high procurement cost. As a replaceable wear part, LBS sleeve can repair worn drums by simply replacing the sleeve separately, without disassembling the whole main drum shaft. It greatly shortens downtime for maintenance and cuts production loss caused by equipment shutdown, with more than 60% lower comprehensive cost in long-term use.
Secondly, it owns outstanding comprehensive performance of wear and corrosion resistance. The product surface undergoes professional quenching and hardening heat treatment to greatly improve surface hardness, resisting long-term reciprocating friction of wire ropes without groove forming or peeling. Hot galvanizing process can be added for offshore application to realize double protection against corrosion of seawater, moisture and dust. Its service life is doubled compared with ordinary unhardened sleeves, lowering labor and material consumption from frequent part replacement.
The third advantage is ultra-high adaptability brought by precision CNC processing. The whole sleeve is milled and formed at one time by 5-axis CNC machining center. Groove radian, inner & outer diameter and splicing gaps are all precisely processed with unified standards, and products of the same specification enjoy strong interchangeability. The split symmetrical structure enables on-site installation by single worker without large hoisting tools, realizing rapid assembly even in overseas construction sites and remote mining areas with limited construction conditions.
The last advantage comes from flexible full-range customization. Material, size, grooving direction, surface treatment and appearance color can all be adjusted as required. The minimum order quantity is only 1 set, supporting sample trial production, small-scale equipment renovation and mass production matching for new machines. Lead time is controllable, with regular specifications finished within 15-30 working days before delivery. Standard export wooden case packaging is provided to avoid collision damage during long-distance ocean transportation.
4.Application
4.1 Marine Vessel & Offshore Platform Field
LBSS-Series LBS sleeves are certified winch drum protectors for marine and offshore heavy winching work. Made via CNC machining with customizable left/right grooves, they guard drums against seawater abrasion and corrosion. Multiple steel and nylon materials plus optional quenching hardening treatments are offered to match different load and marine environment demands.
4.2 Port Terminal Lifting Equipment Scenarios
LBSS drum sleeves are compatible with gantry cranes, container cranes, bridge cranes and mooring winches at coastal and inland river ports. Port equipment operates continuously at high frequency every day with heavy friction loss of wire ropes. Exclusive LBS grooves evenly disperse wire rope pressure to reduce wire breakage and abrasion, lowering daily maintenance frequency of port equipment. The sleeve is easy to disassemble and replace, allowing port maintenance teams to finish replacement quickly without delaying cargo loading and unloading progress.
4.3 Heavy Mining Winding Equipment
LBSS-Series LBS sleeves serve as reliable protective parts for mining and factory winding systems. They resist damage from mineral dust and scraps. The product supports small-batch orders, adopts export-grade packaging with 15–30 day delivery, and accepts T/T and L/C payments for global trade.
4.4 Construction & Industrial Lifting Sites
LBSS-Series LBS sleeves function as vital drum covers for construction lifting equipment. Its exclusive LBS groove firmly holds wire ropes to prevent slipping, reduce abrasion on ropes and drums, and guarantee safe, stable operation of cranes and hoists.
5.Company Introduction
Our factory is located in Shijiazhuang, Hebei Province, with over 10 years’ experience in R&D and manufacturing of wear-resistant winch & crane drum accessories. We own complete CNC machining centers, heat treatment production lines and non-destructive testing equipment, with monthly output up to 500 sets of drum sleeves. Our products are certified by multiple international classification societies, long-term supplied to shipyards, offshore platforms, port machinery and mining lifting manufacturers worldwide. Drawing customization and sample processing are available, with full factory inspection reports and qualification certificates provided. Supported by mature export packaging and logistics system, we deliver stable products to global customers.
6.FAQ
Q1: What certifications does the LBS Sleeve LBSS-Series have?
A1: The LBS Sleeve LBSS-Series is certified with ISO9001, CE, and CCS, ensuring high quality and compliance with international standards.
Q2: What is the minimum order quantity for the LBS Sleeve LBSS-Series?
A2: The minimum order quantity for the LBS Sleeve LBSS-Series is 1 unit.
Q3: How is the LBS Sleeve LBSS-Series packaged for delivery?
A3: The product is packaged in export standard wooden cases or pallets to ensure safe transportation.
Q4: What is the typical delivery time for the LBS Sleeve LBSS-Series?
A4: The delivery time usually ranges from 15 to 30 days after order confirmation.
Q5: What payment terms are accepted for purchasing the LBS Sleeve LBSS-Series?
A5: Payment terms accepted include T/T (Telegraphic Transfer) and L/C (Letter of Credit).
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2010
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Shijiazhuang Jun Zhong Machinery Manufacturing Co., Ltd, located in shijiazhuang city, hebei province, china, covers an area of more than 80 square meters, the geographical position is superior, transportation is convenient. Factory existing staff more than 3000, more than 600 professional and techn... Shijiazhuang Jun Zhong Machinery Manufacturing Co., Ltd, located in shijiazhuang city, hebei province, china, covers an area of more than 80 square meters, the geographical position is superior, transportation is convenient. Factory existing staff more than 3000, more than 600 professional and techn...
