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Rail G Clamp Sizes
Standard Rail G Clamp Size Chart Key Selection Factors Rail Height (must match clamp jaw depth) 01 Web Thickness (critical for proper grip) 02 Head Width (determines upper jaw clearance) 03 Flange Dimensions (affects base plate contact) 04 Our factory & quipment Specialty Clamp Variants...
Features
Standard Rail G Clamp Size Chart
| Rail Profile (lb/yd) | Clamp Size | Weight | Bolt Size | Max Rail Gap | Load Capacity |
|---|---|---|---|---|---|
| 60-80 | GC-80 | 8.5kg | M20 | 6mm | 12 tons |
| 85-100 | GC-100 | 11.2kg | M22 | 6mm | 18 tons |
| 110-115 | GC-115 | 14.8kg | M24 | 8mm | 24 tons |
| 130-136 | GC-136 | 18.5kg | M27 | 8mm | 32 tons |
| 140-150 | GC-150 | 22.0kg | M30 | 10mm | 40 tons |
| 155-175 | GC-175 | 26.4kg | M30 | 10mm | 50 tons |
Key Selection Factors
Rail Height (must match clamp jaw depth)
01
Web Thickness (critical for proper grip)
02
Head Width (determines upper jaw clearance)
03
Flange Dimensions (affects base plate contact)
04
Our factory & quipment
Specialty Clamp Variants
Tight Radius Clamps
Size Marking: GC-115TR
Feature: 15° angled jaws for curved track
Application: <300m radius curves
Insulated Clamps
Size Marking: GC-100I
Feature: Non-conductive polymer inserts
Application: Signalized track sections
Heavy Impact Clamps
Size Marking: GC-175HI
Feature: Reinforced alloy construction
Application: Humid/marine environments
Installation Requirements
Torque Values
M20: 250 Nm
M24: 350 Nm
M30: 450 Nm
Tool Clearance
Minimum 150mm side clearance
300mm vertical working space
Compatibility Guide
| Rail Standard | Recommended Clamp |
|---|---|
| AREMA 115RE | GC-115 |
| UIC 60 | GC-136 |
| BS 113A | GC-100 |
| AS 68kg | GC-150 |
| JIS 50N | GC-80 |
Inspection Frequency:
Every 10 train passes (high-speed lines)
Every 24 hours (temporary installations)
Replacement Indicators:
3mm jaw wear
Visible deformation
Cracked bolt holes
Corrosion >25% surface area
FAQ
Q: What is an emergency rail clamp?
A: An emergency rail clamp is a safety device that instantly stops rail-mounted equipment (like cranes or trolleys) during malfunctions or power failures. It automatically engages when detecting overspeed, power loss, or manual activation, preventing dangerous uncontrolled movements.
Q: When should rail clamps be used?
A: Mandatory for:
Overhead cranes in human work areas
Sloped rail applications (>3° incline)
Environments with frequent power fluctuations
Critical load handling (hazardous materials)
Q: How does the clamping mechanism work?
A: Our clamps use spring-loaded, fail-safe design:
Power holds jaws open during normal operation
On activation, springs force tungsten-carbide teeth into rail
Creates 3-point contact with 4x safety factor over rated load
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