Individual Rail Pads

Introduction

Individual rail pads from Glory Rail are specialized shock-absorbing components designed for crane rail systems, available in three material types: SBR, NBR, and EVA. As one of the two primary pad types (the other being continuous rail pads), individual pads are engineered for “soft-mount” installations with intermittent supports. SBR and NBR variants feature internal steel reinforcement for enhanced lateral stability, while EVA pads offer lightweight flexibility for low-load applications.

Material Types & Advantages

1. Styrene Butadiene Rubber (SBR)

Key Features: Abrasion-resistant, compression-proof, oxidation-resistant, UV-stabilized, and oil-resistant. Grooved surface ensures superior adhesion to supports, reducing wear.
Steel Reinforcement: Embedded steel strips, acid-washed and sandblasted for vulcanization bonding, enhance resistance to crushing and lateral movement.
Application: Ports, wharves, shipbuilding, and heavy industrial environments.

2. Nitrile Butadiene Rubber (NBR)

Key Features: Excellent oil resistance, wear durability, and wide temperature tolerance (-25°C to 100°C). Double-textile structure provides transverse rigidity.
Steel Reinforcement: Thin steel strips proportional to pad width allow rollable transportation while preventing under-rail displacement.
Specifications: Shore hardness 75±5, tensile strength 12.7N/mm², elongation 255% (200% after aging).

3. Ethylene-Vinyl Acetate (EVA)

Key Features: Lightweight (30% lighter than rubber), low compression set, and high flexibility for minor rail misalignments.
Design: Steel-free elastic structure for easy cutting and installation, ideal for noise-reduction or low-load scenarios.

Design & Functionality

Grooved Surface: Enhances friction with supports, minimizing sliding wear under dynamic loads.
Steel Strip Reinforcement (SBR/NBR):
- Prevents lateral rail displacement and ensures long-term stability.
- Thin steel design balances rigidity with transportability (rollable).
Load Distribution: Spreads wheel loads over a wider area, reducing fatigue stress on concrete foundations.

Applications

Heavy Industry: Port cranes, steel plants, coking plants, and logistics hubs.

Light Industry: Warehouse overhead cranes, workshop hoists, and sortation systems.

Special Environments: Wet docks, oily workshops, and outdoor rail installations (NBR/SBR preferred for weather resistance).

Installation Guidelines

1. Sizing: Pads should be 5mm narrower than the rail to avoid interference.
2. Cutting: Use a hacksaw or jigsaw for precise length adjustment; EVA pads can be cut with a utility knife.
3. Surface Prep: Ensure supports are clean, oil-free, and free of protrusions. Avoid painting steel structures beneath pads for optimal adhesion.
4. Welding Protection: Remove pads under weld zones or use thermal barriers to prevent heat damage.

Note: EVA specifications are based on prior product lines; contact us for detailed technical sheets.

Parameter	SBR (MK7 Series)	NBR (MK7 Series)	EVA (MK2 Series)
Shore Hardness	75~80 (Shore A)	75±5	95
Tensile Strength	27.3 MPa	12.7 N/mm²	16 MPa
Elongation	≥340%	255% (200% after aging)	（at break）750% (ISO R 527 standard)
Temperature Range	-25℃ to 100℃	-25℃ to 100℃	-25℃ to 75℃
Vibration Reduction	40%~50%	45%~50%	35%~45%
Noise Reduction(dbA)	≥10%	12%	8~10 dB
Steel Reinforcement	Vulcanized bonding	Vulcanized bonding	None
Standard Length	12m (customizable)	12m (customizable)	Cut to order (per rail length)