HC-Type Square Wire Rope Electric Hoist; HC-Type Square-Enclosure Electric Hoist

Square Enclosure Design: Featuring a rectangular box-type housing design, it is easier to install, transport, and maintain than the CD1 model with its circular housing, and has a neat and attractive appearance. The housing is welded from high-strength steel plates, providing excellent rigidity and high resistance to deformation.

Anti-Tangle Rope Guide Device: A patented anti-tangling wire rope guide device that effectively prevents the wire rope from becoming tangled during hoisting and lowering operations. The wire rope guide nut features a one-piece split design with a spring that automatically adjusts the tension, allowing the wire rope to feed smoothly through the outlet without requiring force from the hook, ensuring long-lasting durability.

Heavy-Duty Limit Switch + Dual Protection: A heavy-weight limit switch is used in place of the traditional fuel-cut-off limit rod. With its simple structure and reliable operation, it completely resolves the problem of the electric hoist hitting the top limit caused by the limit rod stop block slipping out of place and unreliable fuel-cut-off limits. It is also equipped with a load limiter that provides multiple protection functions, including overload, overcurrent, undervoltage, and phase loss protection.

Heavy-Duty Modular Combinations: Based on the two basic module types—Type 08 and Type 16—and by adjusting the pulley block ratio (×2/×4/×6/×8) and motor configuration, a full range of high-capacity electric hoists—including 16t, 20t, 32t, 50t, 63t, 80t, and 100t, significantly expanding the range of applications.

Heavy-Duty, Durable Design: A wound-rotor motor combined with an electromagnetic disc brake replaces the CD1 model’s conical rotor self-braking system, providing high braking torque and fast response; the reducer has been upgraded to a four-stage gear transmission, increasing load capacity by 50% or more; A multi-layer winding drum, combined with a rope guide, accommodates continuous operation at high lifting heights.

The operating principle of the HC-type square wire rope electric hoist is based on a wound-rotor motor driving a four-stage gear reducer, combined with multi-layer winding and a pulley block multiplier system:

① Powertrain: When powered, the wound-rotor motor (YZR series or equivalent heavy-duty motor) drives the four-stage gear reducer via a coupling. The motor is equipped with a built-in electromagnetic disc brake that applies braking force via a spring when power is cut off, providing fast response and high braking torque, making it suitable for heavy-duty applications involving frequent starts and stops with high load capacities.

② Four-stage reduction gearbox: The motor’s rotational speed is reduced step by step through a four-stage helical gear system to drive the drum. Compared to the three-stage transmission of the CD1 model, this four-stage transmission configuration offers a higher gear ratio and greater load-carrying capacity, meeting the low-speed, high-torque requirements for lifting heavy loads.

③ Multi-layer winding + rope layup: The drum features a multi-layer wire rope winding design, combined with a mechanical rope guide, to ensure that the wire ropes are arranged evenly and orderly between each layer, preventing tangling and skipping. The rope guide moves laterally in sync with the rotating drum, guiding the wire ropes to form a spiral pattern.

④ Pulley Block Ratio: The wire rope multiplication ratio (2-rope, 4-rope, 6-rope, or 8-rope) is adjusted via a pulley block. A higher multiplication ratio results in lower tension per rope and slower hoisting speed, making it suitable for heavy-duty applications; a lower multiplication ratio results in faster hoisting speed, making it suitable for medium- and light-duty applications. The HC model allows for flexible adjustment of the rope ratio by replacing the pulley block configuration.

The HC-type square wire rope electric hoist consists of the following core components:

Wound-rotor motor: YZR Series Wound-Rotor Induction Motors, protection class IP54, insulation class F/H. The motor is equipped with an electromagnetic disc brake at the rear, with a braking torque of ≥1.5 times the rated torque.

Four-Stage Gear Reducer: Square housing design, four-stage helical gear drive; gears undergo carburizing and quenching followed by gear grinding. The housing is fabricated from high-strength cast iron or welded steel plates, ensuring a tight seal and preventing oil leaks.

Reel Assembly: Large-diameter drum with a multi-layer winding design, paired with a mechanical rope guide. The drum grooves are precision-machined to guide the wire rope into an orderly, multi-layer arrangement, preventing tangling and skipping. Rope-retaining plates are installed at both ends of the drum.

Steel Wire Rope: Use anti-twist steel wire rope (35×7 or 18×7 construction) with a safety factor of ≥5. Select the appropriate rope diameter based on the lifting capacity and hoist ratio.

Pulley System: Available in 2-rope, 4-rope, 6-rope, and 8-rope configurations; both moving and fixed pulley blocks are equipped with rolling bearings, ensuring high efficiency and minimal wear.

Hook Assembly: Heavy-duty forged lifting hook with smooth rotation, featuring an anti-disengagement device and a mounting bracket for an overload limiter sensor.

Heavy-Duty Hammer Limiter: Replaces traditional flame-cut-off limit rods; features a simple and reliable design that completely eliminates the problem of the valve stem hitting the top.

Control Box: IP54 protection rating; equipped with a contactor, thermal relay, overcurrent protector, undervoltage protection, and phase loss protection modules. Comes with a load limiter instrument panel.

工厂重载车间：配合桥式起重机用于重型设备安装、大型模具更换、铸钢车间物料搬运等20~100t重载起升作业。

矿山选矿厂：矿石破碎设备检修、重型机械安装，HC型多层缠绕设计适应大起升高度的井下或露天作业。

铁路货场：铁路机车车辆维修、重型货物装卸，HC型M6~M7高工作级别满足频繁启停的连续作业需求。

码头仓库：大型集装箱配件装卸、重型机械吊装，HC型抗旋转钢丝绳和防乱绳装置保障作业安全。

水电站：水轮机组安装检修、闸门启闭，HC型96m超高起升高度满足水电站厂房深处的吊装需求。

Working Conditions：海拔≤1000m，环境温度-25℃～+40℃，相对湿度≤85%（+25℃时）。电源三相380V/50Hz。不宜吊运高温、有毒、易燃易爆物品。

Pre-Operation Checks：检查钢丝绳在各层卷筒上的排列情况，确认排绳器工作正常；检查重锤限位器动作灵敏度；检查电磁盘式制动器间隙和磨损量；确认起重量限制器仪表正常。

Operating Procedures：严禁超载使用（HC型大吨位葫芦的超载风险更大）；起吊前试吊确认制动可靠；多层缠绕时注意钢丝绳在各层的排布，发现乱绳立即停止作业调整；倍率切换后须重新标定起重量限制器参数。

Maintenance：每班检查钢丝绳润滑和磨损情况（多层缠绕时注意内层钢丝绳的磨损）；每月检查电磁盘式制动器制动片厚度（≥3mm）；每季度检查减速器油位和齿轮油质量；每半年检查排绳器导轨磨损；每年进行全面检修、载荷试验和安全检査。

大吨位葫芦专业制造：克鲁德重工拥有HC型方箱电动葫芦全系列生产能力，从16t到100t均可自主生产，所有结构件（方箱壳体、卷筒、滑轮组）自主设计加工，关键外购件（绕线式电机、电磁制动器、钢丝绳）选用国内一线品牌。

模块化灵活组合：08型/16型两种基型模块+滑轮组倍率+电机配置的组合方案，可在短时间内完成从标准型号到非标超大吨位（如75t、90t等中间吨位）的定制设计和生产。已有为水电站、钢铁厂提供63~100t非标葫芦的成熟案例。

全流程重载品控：每台HC型葫芦出厂前进行1.25倍额定载荷静载试验和1.1倍动载试验。电磁盘式制动器逐台进行制动扭矩测试和温升试验。多层缠绕排绳器连续运行测试≥2小时确保排绳可靠。

问：HC型方形电动葫芦和CD1型钢丝绳电动葫芦有什么区别？

答：HC型是针对大吨位、高工作级别需求的重载改进型产品，与CD1型的主要区别：① 起重量范围5~100t（CD1型最大20t）；② 电机采用绕线式电机+电磁盘式制动器（CD1型锥形转子自制动）；③ 减速器为四级齿轮传动（CD1型三级）；④ 方形外壳结构（CD1型圆形）；⑤ 多层缠绕+排绳器（CD1型单层/双层缠绕）；⑥ 工作级别M5~M7（CD1型M3~M5）；⑦ 防护等级IP54（CD1型IP44）。HC型适用于重载频繁作业，CD1型适用于中小吨位常规作业。

问：HC型电动葫芦执行哪些国家标准？起重量范围如何组合？

答：HC型电动葫芦的设计制造执行JB/T 9008.1《钢丝绳电动葫芦》标准和GB/T 3811《起重机设计规范》。起重量组合方式：以08型（基型16t）和16型（基型32t）两种基型模块为基础，通过滑轮组倍率（×2/×4/×6/×8）和电机变换实现16~100t全系列覆盖。例如：16型基型（32t）+倍率×2=16t，16型基型+倍率×4=32t，两台16型组合+倍率×4=63t，以此类推。

问：HC型大吨位电动葫芦的参考价格是多少？

答：HC型电动葫芦价格因吨位、倍率、电机配置和起升高度不同而差异较大：16~32t约25,000~60,000元，50~63t约60,000~120,000元，80~100t约120,000~250,000元。大吨位葫芦需配合相应吨位的桥式起重机使用，整机系统价格需综合评估。批量采购或成套订购可享优惠折扣。