Overview
Sleeve cable glands, also termed cable connectors or cord grips, are essential components in cable management systems. They mechanically fix cables entering electrical enclosures while maintaining ingress protection (IP) ratings. Industrial-grade variants withstand harsh conditions like extreme temperatures, chemicals, or vibrations. Standardized by threads (e.g., M20, PG13.5) and materials, they serve diverse sectors from HVAC to offshore rigs. Modern designs integrate grounding clamps for shielded cables and modular accessories like locking rings or reducers.
Structure and Working Principle
A typical sleeve gland comprises a threaded body, sealing ring, and compression nut. The body screws into the enclosure wall, while the nut tightens the seal around the cable via an internal grommet or cone. Double-sealing variants add an O-ring for extra moisture resistance. Strain relief is achieved through radial compression: as the nut tightens, the seal uniformly grips the cable jacket without damaging conductors. Some models include armor clamps for steel-wire-armored (SWA) cables or metric-to-NPT adapters for cross-standard compatibility.
Key Features
IP68-rated glands submerge up to 1m depth, while ATEX versions inhibit explosive atmospheres. Brass glands excel in EMI shielding, whereas nylon suits lightweight corrosive environments. Anti-vibration designs use spring-loaded mechanisms to absorb machinery oscillations. Flame-retardant materials (e.g., UL94 V0) prevent fire propagation, and UV-stabilized plastics endure outdoor exposure. Modular systems allow daisy-chaining multiple cables through a single entry point, reducing enclosure cutouts.
Application Areas
Industrial automation panels rely on glands to organize sensor/actuator cabling. Solar farms use UV-resistant types for junction boxes, and marine applications mandate stainless steel for saltwater corrosion resistance. Oil/gas installations require explosion-proof certifications, while food processing plants prioritize easy-clean stainless designs. Telecommunications deploy glands for fiber-optic entry, often with anti-rodent features.
Maintenance and Precautions
Inspect seals annually for cracking or compression loss, especially in thermal-cycling environments. Lubricate threaded parts with silicone grease to prevent seizing in humid conditions. Avoid overtightening, which may deform cables or crack plastic housings. For hazardous areas, verify certification markings (e.g., IECEx) remain legible. Replace glands if seals show hardening or if upgrading cable diameters—never reuse a gland for a significantly smaller cable.
B2B Procurement Guide
Bulk purchases commonly offer 15–30% cost savings, with MOQs starting at 500 units. Custom branding (laser engraving/moldings) is viable for orders above 10,000 pieces. Lead times vary: 2–4 weeks for standard stock, 8+ weeks for ATEX-certified batches. Audit supplier ISO 9001 certifications and request material test reports (MTRs) for metal alloys. Sample testing should include salt-spray (ASTM B117) and pull-force validation. Preferred vendors stock multiple thread standards (e.g., G, NPT, Metric) to simplify global deployments.
Related Manufacturers
- 主营：H型钢、C型钢、热镀锌角钢、槽钢、镀锌钢管、聚氨酯保温钢管、空心焊管、P塑料管帽、不锈钢焊管、不锈钢管、镀锌无缝钢管、电缆保护管、螺纹法兰盖、球墨铸铁圆井篦子、盘螺线材、涂塑防腐钢管、螺旋管、碳钢圆管、衬塑钢管、精轧螺纹钢、镀锌方管、玻璃钢防腐保温管、法兰弯头三通、排污供水管、彩钢围挡
- 主营：人孔、弹簧支吊架、管托、橡胶软接头、管夹、滑动支座、弯头、法兰、三通、水流指示器、漏斗、T型管托、焊接滑动支座、双孔短管夹、双螺栓管夹、管卡、U形螺栓、90度弯头、180度弯头、u型弯头、防水套管、补偿器、金属软管、通气管、通气帽
- 主营：支吊架、补偿器、异径管、镀锌穿线管接头、异形法兰、图纸法兰、耐磨管、焊接弯头、弯头、耐磨管件、封头、法兰、管道配件
- 主营：管件、管道、法兰、弯头、三通、大小头
- 主营：JDG管、KBG管、联塑JDG管、镀锌穿线管、金属穿线管、镀锌桥架、鹏正朋正桥架、正通鹏正JDG管、鹏正JDG管、朋正JDG管、凯必吉JDG管、镀锌钢管、镀锌电线管、申捷JDG管、热镀锌槽钢、热镀锌方管、热镀锌角钢、工字钢、螺纹钢、槽式桥架、热浸锌桥架
- 主营：高铁桥梁预埋件、钢横梁、预埋t钢、预埋套筒、吊围栏、检查梯、防落梁挡块、声屏障立柱、接触网、下锚拉线、地铁管片预埋件、栏杆预埋件、桥栏遮板、地脚螺栓、预埋钢板、支座钢板
- 主营：聚氨酯保温管、预制直埋保温管、防腐钢管、镀锌管套筒、钢套钢保温管、涂塑钢管、热浸塑钢管、螺旋管、无缝管
- 主营：聚氨酯保温管、钢套钢蒸汽保温钢管管件、防腐钢管管件、镀锌管套筒、热浸塑钢管弯头管件、无缝钢管、螺旋钢管、直缝钢管、镀锌钢管、直埋保温管、保温管件、镀锌弯管
- 主营：管托支吊架、弹簧支吊架、聚氨酯保冷管托、预埋镀锌接头、管托、C型抱箍管卡、管夹式管托、布料机、J1管托、J2管托、液压布料机、蛭石隔热管托、支吊架、管廊支架、滑动隔热管托、导向隔热管托、固定管托、导向管托、隔热管托、焊接式管托、L1保冷管托、T型架、U型管夹
- 主营：镀锌管、无缝管、螺旋钢管、无缝钢管、不锈钢管、热镀锌圆管、实体螺旋管、不锈钢圆管、热镀锌螺旋管
- 主营：涂塑钢管、热浸塑钢管、螺旋钢管、DN80钢管套筒、防腐钢管
- 主营：免焊直接头、聚氨酯保温钢管、钢套钢蒸汽保温钢管、管件保温
- 主营：镀锌穿线紧定接头、防腐消防钢管
- 主营：耐磨弯头、陶瓷环耐磨
- 主营：阻火器、补偿器、法兰盖、波纹管、直缝管、通气帽、防爆门、单丝头、铝合金、304盲板、双金属、铜弯头、直缝焊、膨胀节、304弯头、管板保、承插件、过滤器、清扫孔、无缝管、液压件、压力罐、除尘器、3pe防腐、异径管