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Crane Systems and Related EquipmentCrane Saddle: GU Type(Single Speed Type)

Index

Overview

The wheel unit for Hitachi's gantry crane saddle is compact unit with integrated structure. It can be used not only for gantry cranes but also for traverser of overhead traveling cranes.

Specifications

  • Source Power
    3-Phase 200V 50/60Hz, 220V 60Hz, 380V to 400V/415V 50Hz, 400V to 440V 60Hz
  • Max. No. of starts per hour and duty factor
    Max. No. of starts per hour: 250 starts/h (THM5-45 and TLM5-45: 150 starts/h), Duty factor: 25%
  • Protection Structure
    Dust proofing and indoor application (GU can be used outdoor)
Model GU-45 GU5-56 GU5-75
Max Wheel Load (ton) 4.5 5.6 7.5
Traveling Speed 50/60Hz (m/min) 25/30 30/36
Motor Output 50/60Hz (kW) 1.2/1.5
(with brake)		 2.5/2.9
(with brake)
No. of Poles 4
No. of starts per hour and duty factor 250 starts/h, 25%ED
Power Source (3-phase) 200V 50/60Hz, 220V 60Hz,
380 to 400V/415V 50Hz,
400V to 440V 60Hz
Wheel Diameter. (mm) (Material) 0 ～ 60%
Traveling rail (kg) 22,30 22,30 30,37
Approx. Weight (kg) 340 280 380

Saddle Selection

Two pairs of the driving side and the trailing side are required when the wheel unit is used for a gantry crane.

Models

Type Max. Wheel Load (ton) Max. Span (m) Traversing Speed (m/min) Models Body Frame Structure
Toprun Type Saddle TH Type 1 10 21/25 TH5-10 Double-channel structure
2.8 12 TH5-28
3 16 TH5-30
3 20 THL5-30
5.6 18 TH5-56
5.6 20 THL5-56
7.5 20 TH5-75
11.2 20 25/30 TH-112
Toprun Type Trackless Saddle TLM Type 2.8 14 21/25 TLM5-28 Double-channel structure
3.2 16 TLM5-30
4.5 18 TLM5-45
10.0 20 TLM5-100
Suspension Type Crane Saddle SL Type 0.6 10 21/25 SL-6 L-type frame structure
1 10 SL5-10 Double-channel structure
2.8 12 SL6-28
3.0 16 SL5-30
5.6 16 SL5-56
Suspension Type Polyurethane Rubber Wheel Saddle SLM Type 1 10 SLM5-10 Double-channel structure
2.8 12 SLM5-28
Wheel Unit for Toprun Type Saddle TLU Type 2.8 — TLU5-28 —
5.6 — TLU5-56
Wheel Unit for Gantry Crane Saddle GU Type 4.5 — 25/30 GU-45 —
5.6 — 30/36 GU5-56
7.5 — GU5-75
  • When you use the wheel made of polyurethane rubber, be sure to earth the saddle body with a dedicated earth wire. When you use the earth brush in stead of the earth wire, remove coating and rust, and be sure to clean the surface of the rail so that the earth functions well.

Wheel Load Calculation

Traverser

Crab

Gantry Crane

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