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

Index

Overview

Hitachi trackless trolley is the latest model that the latest technology is applied to our experiences. Polyurethane Rubber is used for the wheels. It is silent and smooth, and thus it is suitable for a factory that is located near a residential area. Reliability of the saddle has been improved also.

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
Specification		 SL5-10 SL6-28 SL5-30 SL5-56
Max Span (m) 10 12 16 16
Max Wheel Load (ton)
(with 2 wheels)		 1.0 2.8 3.0 5.6
Traveling Speed 50/60Hz (m/min) 21/25
Motor Output 50/60Hz (kW) 0.30/0.36 × 2units
(with brake)		 0.70/0.84 × 2units
(with brake)
No. of Poles 4
No. of starts per hour and duty factor 250 starts/h, 25%ED
Power Source (3-phase) 200V 50Hz/60Hz, 220V 60Hz, 380 to 400V/415V 50Hz, 400V to 440V 60Hz
Wheel Diameter. (mm) (Material) φ76
(S45C heat treatment)		 φ100
(S45C heat treatment)		 φ140
(S45C heat treatment)
Applicable I-beam (mm) 200 × 100 × 7
250 × 125 × 7.5
300 × 150 × 11.5		 200 × 100 × 7
250 × 125 × 7.5
300 × 150 × 11.5
450 × 175 × 11		 300 × 150 × 11.5
450 × 175 × 11
Approx. Weight (kg) 70 × 2 105 × 2 140 × 2 210 × 2
  • The saddle is coated for rust prevention only.

Saddle Selection

  • The capacity shown in the diagram shows approximate capacity to the maximum span. In the actual selection, the wheel load including the girder must be calculated.

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

Features

  • Noise is reduced by approx. 5dB because there is no noise from flanged wheels.
  • As wheels run smoothly and polyurethane absorb the vibration of the hoist, vibration conducted by the building will be reduced by approx. 50%.
  • The guide roller is adopted, no noise from the flanged wheels and traveling is smooth.
  • Terminal box that makes wiring simple is included.
  • The middle shaft part of the driving side power transmission is unitized. Dismantling and assembling during installation are easy.
  • Manufacturing time of the crane can be reduced by the centering mark for adjustment.

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