Bolted Rail Clips for Adjustable Crane Rail Fastening Systems
Optimal fastening solutions driven by precise mechanical calculation
We don’t just supply hardware; we engineer systems
Why Choose Forgesail Welded Fastening Systems?
Hot-Forged Durability
Unlike brittle cast iron, our clip bases are hot-forged from Q355B steel, delivering superior tensile strength and impact resistance in severe environments.
High Adjustability
Provides up to 21mm of lateral adjustment, making it incredibly easy to perfectly align tracks during installation or handle future rail maintenance.
Custom-Engineered Solutions
ForgeSail deliver engineered solutions that ensure long-lasting, secure track stability tailored perfectly to your specific operational environment.
Core Parameters for Bolted Rail Clips
| Clip Model | Max Side Load (kN) | Bolt Size | Compatible Rail Models | Adjustment Range (mm) | Height (mm) | Application Duty |
|---|---|---|---|---|---|---|
| 3116 | 60 | M16 | A75, UIC54, UIC60, ASCE 80 | 13 | 36 | Lightweight |
| 3120 | 85 | M20 | A75, UIC60, P60, QU80, ASCE 80, JIS-50-N | 17 | 38 | Medium-lightweight |
| 3124 | 150 | M24 | A100, P50, P60, QU80, QU100, JIS-50-N | 15 | 42 | Medium |
| 3220 | 180 | M20 | A75, UIC54, UIC60, ASCE 80 | 13 | 38 | Medium-heavyweight |
| 3222 | 240 | M22 | QU120 | 17 | 44 | Heavyweight |
Need detailed technical drawings for your project?
DOWNLOAD 3D CAD & INSTALLATION MANUAL (PDF)* Includes precise dimensional data, material grades, and hole layout requirements.
FAQs
Q: What are bolted rail clips used for?
Bolted rail clips are used to secure crane rails to steel support beams using bolts rather than welding. They are ideal for:
- Overhead crane runway tracks requiring periodic alignment
- Gantry crane and portal crane rail systems
- Industrial tracks where future relocation is planned
- Temporary or semi-permanent rail installations
ForgeSail bolted rail clips allow easy adjustment and replacement — simply loosen the bolts, realign the rail, and re-tighten.
- Continuous welded rail (CWR) joints in railway construction
- Crane rail welding in steel mills, ports, and shipyards
- Metro and tram line track installation
- Industrial track maintenance and repair
ForgeSail's aluminothermic welding kits are designed for field use — no external power required, portable, and capable of delivering strong, permanent welds in under 30 minutes per joint.
Q: What is the difference between bolted and welded rail clips?
| Feature | Bolted Rail Clips | Welded Rail Clips |
|---|---|---|
| Installation | Bolt to beam (no welding) | Weld directly to beam |
| Adjustability | Adjustable after installation | Fixed position |
| Replacement | Easy — unbolt and replace | Requires cutting/welding |
| Maintenance | Periodic bolt torque check | Maintenance-free |
| Best for | Tracks needing realignment | Permanent installations |
Both types are available from ForgeSail. Choose bolted rail clips when your track may need alignment changes over time, or when on-site welding is not practical.
Q: What rail profiles are compatible with bolted rail clips?
ForgeSail bolted rail clips are available for:
- A-section crane rails: A75, A100, A120, A150 (DIN 536)
- QU series rails: QU70, QU80, QU100
- Railway rails: UIC 60, UIC 54, AREMA 115RE, GB 60kg/m
We also offer custom bolted rail clips for special rail profiles and non-standard beam flanges. Send us your rail drawing and we can match the clip design.
Q: How are bolted rail clips installed?
nstallation process for bolted rail clips:
- Drill mounting holes in the beam flange according to your clip template
- Place the rail on the beam with correct alignment
- Position the bolted rail clips over the rail base at specified intervals
- Insert high-strength bolts and tighten to specified torque
- Check rail alignment and adjust as needed
- Perform final torque check with a calibrated torque wrench
ForgeSail provides a bolted clip installation guide with torque specifications for each clip size. We recommend periodic torque re-checks as part of routine rail maintenance.
Q: What bolt torque is required for bolted rail clips?
The recommended torque depends on the clip size and bolt grade. ForgeSail standard bolted rail clips use:
- M16 bolts (grade 8.8): 200-240 Nm
- M20 bolts (grade 8.8): 350-420 Nm
- M24 bolts (grade 10.9): 600-700 Nm
We provide a detailed torque specification sheet with every order. Proper torque is essential for maintaining clamping force and preventing rail movement during operation.
Q: What materials and protective finishes are used?
- Material: Q235B / SS400 (standard), S355 / 55C (high-strength option)
- Bolts: High-strength grade 8.8 or 10.9, zinc-plated or HDG
- Standard finish: Hot-dip galvanized (≥80μm) for outdoor/humid environments
- Optional: Plain, epoxy coated, or Dacromet finish for special requirements
For corrosive environments (ports, chemical plants, shipyards), we recommend HDG bolted rail clips with stainless steel bolts.
