What are the different types of railroad clips?

Fixed components (e.g., shoulders, baseplates) are directly welded to embedded shoulders or baseplates on sleepers or track slabs. Non-removable. Provides extremely strong longitudinal restraint (anti-creep), commonly used in slab tracks or sections with high anti-creep requirements.

Features: High rigidity, excellent anti-creep performance, non-adjustable after installation, difficult to replace.

Application: Ideal for steel plants, ports, and heavy-duty rail tracks; Rigid rail clip without pressure tongue, suitable for steel mills and smelting plants

Welded rail clip type: 1615 / 9116/ 9216 /9120/9220/ 7116/ 7120/7216/7120; rigid rail clip

Use bolts as the primary fastening element. Tightening the bolts generates clamping force to hold the rail. Typically consists of cast iron/steel baseplates, T-bolts, nuts, spring washers, and elastic pads.

Features: Relatively simple structure, lower cost, relatively easy installation/removal, provides good longitudinal restraint (friction-dependent), good maintainability. Common in traditional ballasted tracks (e.g., K-type fastenings).

Rail Clamp Models: 3116 / 3120 / 3124

Typically consists of the spring clamp, insulated rail pad/guide plate, baseplate (metal and/or elastic), plastic sleeve/shoulder.

Features: This is the mainstream type for modern tracks (especially high-speed, heavy-haul, metro). Advantages include: stable and long-lasting clamping force, excellent elasticity (providing multi-level stiffness), effective vibration and noise reduction, good electrical insulation, few components, rapid installation/removal (usually by hammering or special tool), ease of fine adjustment of track geometry (via changing rail pads/guide plates).