20 Ton Wire Rope Electric Winch Trolley Hoist For Overhead Crane

20 ton Wire Rope Electric Winch Trolley Hoist For Bridge Crane

Lifting Mechanism

It adopts three-pivot installation form; both ends of reel directly support the end carriages of trolley frame; pulley beam connects end carriages on both sides through bolts to form longitudinal beam. Output shaft of reducer should be coordinately connected to outstretched reel shaft. The elastic coupling can be applied to hoisting motor and reducer.
1, Welding Reel. It is made of short shaft steel plate rolling, with bearing bases on both ends, one of them outstretches set shaft, of which structure is simple and easy for adjustment and installation.

2, Hight-strength galvanized steel rope. With breaking force of 1870kn/mm2, it’s not necessary to get it coated with rustproof oil and maintenance-free.

3, Lifting motor. It adopts the frequency conversion motor, which is optimized air-cooling type, with insulation class F and protection class IP55, and power continuity rate 40%.

4, Lifting reducer. It gets the tooth surface carburized and hardened, with hardness of HRC60, and also has been grinded or gear shaved, with light deadweight, good sealing and no leakage.

5, Lifting brake. The regular closed brake has automatic abrasion compensation function which can manually release under emergency station through separate manual operation. If necessary, two brakes could be allowed to install.

6, Hook group. It consists of hook and pulley. The hook material is DG34CrMo. The pulley material is Q235 hot-rolling. It adopts anti-friction roller bearing, the hook can be 360degree rotation. It is equipped with spring-pressed safety lock, preventing from slipping off. All pulleys use maintenance-free bearing, the design can efficiently prevent abrasion between steel rope and pulley shell. It has delicate overall structure and volume as well as nice appearance.

7, Lifting Limit switch. It is of cam rotary type, 4 steps adjusting, up and down limitation, auto-resetting, safe and reliable. The lifting pre-limitation can reduce the impact; extreme limitation can avoid the hook from over-lifting.

8, Electrical Box. It is of IP55 protection class, air plug and fast-easy installation; Schneider/Siemens electrical kits, etc

Drawings Of Crane Trolley

Dowell Crane Co., Ltd is a China-leading company in crane manufacture and crane trading business. We serve a broad range of customers from all over the world, providing a complete set of advanced lifting projects, including Gantry crane, Bridge crane, Portal crane,
Beam launcher, Electric winch, Lifting platform and so on. Dowell crane is sticking to the global optimal procurement of raw materials and parts to make innovations in technical details of electric control and mechanical transmission,etc.We continue the wide and deep cooperation with the well-known transnational enterprises such as Simens and Sew in Germany, Schneider in France and ABB in Switzerland, etc.

Company Strength

Dowell Crane Co., Ltd is a China-leading group of crane businesses which was founded in 1955, Only one company has 60years manufacture experience. And serving a broad range of customers all over the world to provide a complete set of advanced lifting project, including Gantry crane, Bridge crane, Jib crane, Accessory. Our clients include manufacturing and process industries, shipyards, ports and so on. Regardless of your lifting needs, dowellcrane Machinery Group is committed to providing you with lifting equipment and services that increase the effectiveness and value of your business.

a). Dowell Crane Co., Ltd have already obtained the CCC,CE,BV,SGS,ISO OHSAS certification's and have won over 60 honors.

b). China's leading mechanical research and design institute and famous university provides advanced technical support for us.

c). Serviced for more than 5000 companies, and the products popular in more than 40 countries.

d). Through decades of unremitting efforts, now, Dowell Crane Co., Ltd covers an area of 180,000 square meters and over 380 sets of advanced equipments. Management staff reach to 860, and our worker have more than 10000.

Packing & Delivery terms:

1. Hoist and electric parts will be packed by plywood crate, for avoiding the demage from goods crash and impact during the delivery.

2. Girders and other main parts will be packed by plastic woven cloth, for preventing rust from soppy condition during the transportation.

3. Only the best transport solution will be taken for saving your cost uttermost on finance, security and time.