Hydraulic Piston Seals

KL47 multi-piece piston seal set for medium to heavy duty hydraulic cylinders. Features low friction, high wear resistance, and long service life. Accepts high and low pressure with misalignment tolerance. Available in PTFE from 6mm to 200mm bore size.

KL27 double acting piston seal with PU sealing ring and NBR O-ring energizer. Suitable for light to medium duty applications. High static and dynamic sealing. Simple groove design per ISO 7425-1. Economical and easy to install. Ideal for mobile machinery, injection molding, forklifts, and agricultural equipment.

KL37 piston seals feature a fabric sealing ring, L-form back-up guide ring, and thermoplastic retainer for heavy-duty mining applications. High extrusion and abrasion resistance, easy installation, and variable pressure performance. Available in NBR, Fabric NBR, and POM materials with bore sizes from 32mm to 200mm.

KL40 two piece double acting sealing set with hard PU seal ring and NBR energizer. High wear, pressure, and extrusion resistance. Suitable for ISO 7425-1 grooves. Easy installation. Ideal for construction, injection molding, and agricultural machinery.

KL48 double acting piston seal with PTFE profile ring, X-ring and O-ring energizer. Ideal for separating different media in fluid and gas systems. High wear resistance, chemical resistance, and long service life. Complies with ISO 7425/1. Custom sizes available.

KL29 PTFE sealing ring with energizer elastomer O-ring offers low friction, high extrusion resistance, and long service life. Suitable for ISO 7425/1 housings. Customizable with various PTFE fillers for hydraulic cylinders, cranes, and wind turbines.

KL29X piston seal sets combine a PTFE sealing ring with an elastomer O-ring for low friction, high extrusion resistance, and no blow-by. Ideal for cranes, injection molding, and construction machinery. Compliant with ISO 7425/1. Custom sizes available.

Durable rubber O-rings in NBR, FKM, silicone, and more. Offer excellent sealing, waterproofing, and resistance to oil, ozone, and high temperatures. Custom sizes, colors, and hardness (30-90A) available with OEM/ODM services for industrial applications.

KELONG hydraulic oil seal offers high wear resistance and low pressure deformation for reliable sealing in light to medium load applications. Injection molded with U5203 material, it ensures easy installation and excellent low temperature resistance. Customizable in NBR, FKM, or other materials.

KLHPS-13 single-acting piston seal for light to medium loads. Injection molded with high-performance U5203 polyurethane for excellent wear resistance and low temperature flexibility. Works under 35 MPa, -20°C to 100°C. Easy installation, ideal for oil and water emulsions.

Manufacturer direct high temperature resistant U-packing hydraulic oil seals in UN/UHS/UNS types. Made from premium TPU with excellent wear resistance, low deformation, and easy installation. Suitable for light to medium load hydraulic systems in mobile, agricultural, and mining machinery. Custom sizes available.

Engineered for light to medium load hydraulic systems, this U/Y type polyurethane sealing ring offers high wear resistance, low pressure deformation, and excellent anti-extrusion. Suitable for mobile, agricultural, and mining machinery. Custom materials and colors available.

High-performance single-acting U-shaped seal for light to medium loads. Made of durable PU with excellent wear and extrusion resistance. Suitable for piston and rod applications. Custom sizes and materials available.

High-performance breaker repair kit featuring gas and hydraulic oil seals. Rated for 35MPa and -20°C to 100°C. Made from durable polyurethane with excellent wear and extrusion resistance. Custom materials available including NBR, FKM, and HNBR. Ideal for heavy-duty industrial applications.