Underslung Hoist-Straight Trolley

Underslung Hoist-Straight Trolley

General Purpose Micro AC Drive

0.18 to 4 kW (0.25 to 5 hp)

1Φ 100 & 200 V, 3Φ 200 & 400

The design of our system is characterized by its compactness and efficient hook approach.

We have achieved an optimized weight balance, eliminating the need for counterweights and contributing to a streamlined operational setup. The working group adheres to the M5 duty standard, ensuring reliability and performance. The dual lifting speed capability enhances versatility in handling various loads. The trolley is specifically designed for smooth movement along a straight path, adding to the overall efficiency and functionality of the system.

Underslung Hoist – Straight Trolley Models

Model NOWorking Load (Tons)Lift Height (m)ReevingSpeed (m/mm)FEM
CRU 0.50.5t6, 9, 12, 18, 242/12.5/102M
CRU 011t1.25/5
CRU 022t

Features

  • Durable Rope Guide ensures wire rope tightly in drum.
  • Trolley drive with integrated brake motor.
  • DIN Hook with 360° rotation.
  • In build Hoist Panel with plug and socket connections.

Safety

  • Double limit switch for Up and Down Lifting.
  • Safety Latch for Hook.
  • Mechanical overload protection.

Technical Advantages

  • Design: Compact and good hook approach
  • Counter Weight: Optimized weight balance without counter weight.
  • Working Group: Standard with M5 duty.
  • Lifting Speed: Dual lifting speed.
  • Trolley: Suitable for straight path.

Technology

  1. Gear Box
  2. Rope Drum
  3. Rope Guide
  4. Rope
  5. Hook Block
  6. Rotary Limit Switch Equipment
  7. End Tie Assembly
  8. Panel Box
  9. Cross Travel Machinery
  10. Hoisting & Travel Motor
  11. Wheel

Specifications

Standard Specifications

Capacity Range (Tons)5t to 1.6t
ClassificationFEM 2m
Lifting Speed(m/min)10/2.5, 5/1.25 …; Contactor Controlled
Travel Speed(m/min)25/6; Contactor Controlled
Power Supply415Volts, 3 Phase, 50 Hz, AC Supply
Control Supply48 Volts, 50 Hz, AC Supply Contactor Controlled
Ambient Temp. (°C)50°C Max
ApplicationIndoor
Thermal Insulation ClassF-Class
Motor EnclosureIP 54
Brake TypeElectromagnetic Disc Brake – AC/DC
Runway Beam(mm)ISMB 140 (or) Plate (Radius of Curvature – 1.5M)
HookDIN 15400
Rope DrumSeamless pipe rope drum grooved as per DIN 15061

Description

Gear Box

  • In-house precision machined Aluminium cast body for reduced weight.
  • In-house hardened and Precision ground gears for smooth running and long life.
  • Gears permanently immersed in synthetic oil for quiet, smooth and cool operation.

Rope Drum

  • Designed for durability and life long use.
  • Constructed from a high quality seamless steel.
  • Manufactured according to DIN-15061.

Rope Guide

  • Heavy duty rope guide ensures positive rope scrolling.
  • GGG 40 spheroidal cast iron material used to provide low wear and keeps the rope securely in the groove on the drum.
  • Special guide spring is fitted between the wire rope and the guide to maintain the correct tightness of the rope on the drum.

Rope

  • High strength Wire Rope provides high resistance to fatigue and wear.
  • Compact strand structure and highly flexible steel core rope for long life.
  • High wire rope / pulley diameter ratio increases the rope life span.
  • Selected according to ISO 4308-1.

Hook Block

  • Robust design for improved safety and handling.
  • Rotating hook and pulley block with safety latch.
  • High strength forged steel hook capable of 360 degree rotation.
  • Machined sheave grooves for long rope life.
  • Designed according to DIN-15400.

Rotary Limit Switch Equipment

  • Automatic cut-off of the lifting and lowering motions in upper and lower limit positions.
  • Cut-off position can be adjusted to suit the application.
  • Provides Upper/Lower motion limit switch as standard option.

End Tie Assembly

  • Mechanical Overload protector is used as standard option to prevent lifting excessive overloads.
  • Pre-set springs are mounted for rated load.
  • Electronic load measure used as optional.

Cross Travel Machinery

  • Travel machinery is specially designed for hoist application.
  • Easy to remove without removing wheels.
  • Case hardened and Precision ground gears for smooth running and long life.
  • Gears permanently immersed in oil/grease for quiet, smooth and cool operation.
  • Standard travelling speeds of 20 m/min (single speed) and 20/5 m/min {double speed) at 50Hz. Other travelling speeds can be also fitted upon request.

Hoisting & Travel Motor

  • Heavy duty motor with an incorporated brake and fan cooled.
  • The brake disc lining material is asbestos free with high friction coefficient and long lasting.
  • Provided with IP 54 enclosure rating and F insulation class.
  • On request we can provided with IP55 or IP 56 enclosure rating with H Class insulation.
  • Thermistors fitted on windings of the motor for protection of windings in high temperature.

Wheel

  • Single flanged wheels for monorail hoist and double flange for crab hoist.
  • The wheels are totally machined, and made of spheroidal cast material SG-700/2.
  • Ball / Spherical Roller / Taper Roller bearings are used for high life.
  • Modular design to suit different mounting positions.
  • Easy removal and maintenance.