Guarnitec hydraulic seals and reciprocating packings

Guarnitec fluid power seals (Italy): rod seals across TSE and GIP, piston elements TPM, wipers GHM, and guide rings AGI.

Guarnitec hydraulic rod sealing systems

Guarnitec rod sealing profiles across TSE, GIP, and TTS series deliver dependable sealing for reciprocating hydraulic cylinder rods. Fabric-reinforced elastomer compounds and Tecnolan polyurethane eliminate fluid leakage under severe cyclic dynamic operating pressures.

Specialized sealing profiles including TSE, GIP, TTS, and buffer ring elements
Hydraulic operational pressure within fluid power circuits reaching up to 50 MPa
Thermal resilience of elastomeric compounds across temperatures from -35 to +110 C
Minimal permanent compression set under continuous alternating mechanical stresses

Guarnitec hydraulic piston sealing components

Guarnitec piston seals across TPM, TDE, TTR, and GER series are engineered for single-acting and double-acting hydraulic cylinders. Multi-component sealing arrangements featuring polyoxymethylene guide bands promote smooth stroke motions without wedging tendencies.

Piston sealing configurations including TPM, TDE, PDP, TGU, and profiled TTR rings
Prevention of internal fluid bypass between opposing cylinder pressure chambers
Integrated polyacetal anti-extrusion rings engineered to endure intense stresses
Linear reciprocating sliding velocities supported continuously up to 1.5 m per s

Guarnitec heavy-duty wiper elements and dust seals

Guarnitec wiper elements across GHM, GHK, GHW, and GPA lines exclude external particulates, abrasive grit, ambient ice, and moisture. Components are produced in elastomeric formulations alongside metal-reinforced outer shells designed for secure fitment in open grooves.

Wiper profiles including GHM, GHK, GHY, GHW, GHP, and metal-reinforced GPA configurations
Effective removal of fine dust and moisture films from polished rod surfaces
High resistance against aggressive fluid chemicals, mineral oils, and UV exposure
Formulations utilizing Tecnolan polyurethane, nitrile rubber, and fluoropolymer

Guarnitec guide rings and bearing strips

Guarnitec guide rings across AGI, AGE, AFI, and TEF/SEAL series absorb transverse loads and accurately center reciprocating rods and pistons. Glass-filled polyoxymethylene and phenolic resin fabric eliminate metal-to-metal contact and eliminate scuffing on cylinder tubes.

Bearing rings across AGI, AGI/S, AGE, AFI, AFE, and bronze-filled PTFE TF bands
High static radial load capacities supporting levels up to 40 N per square mm
Elimination of metal contact risks and surface scoring on honed cylinder tubes
Extremely low dynamic friction coefficients ensuring smooth motion without stick-slip

Guarnitec static seals and elastomeric rings

Guarnitec static seals including GDS profiles and circular elastomer rings seal threaded connections, cylinder end-covers, flanges, and manifold junctions. Polyurethane GDS designs withstand extreme pressure surges and preserve elasticity during long continuous operation.

Profiled GDS elements, backup rings, GSS, GKS, GKM, and circular O-ring profiles
Static hydrostatic operating pressure capacities reaching up to 50 MPa
Strong resistance against gap extrusion during sudden hydraulic shock spikes
Elastic recovery maintained across extended temperatures up to +150 degrees C

Guarnitec cylinder overhaul kits and maintenance packages

Guarnitec sealing kits for hydraulic cylinders in earthmoving, agricultural, forestry, and lifting machinery are tailored using equipment nameplate data. Complete overhaul sets contain all necessary rod seals, piston rings, wipers, and guide strips for overhaul.

Comprehensive overhaul kits for boom, arm, steering, and outrigger cylinders
Precision engineering verification of seal geometries against housing drawings
Factory packaging featuring clear dimensional markings for rapid identification
Commercial supply terms with prompt logistics across industrial manufacturing sectors

Manufacturing foundation and quality standards of Guarnitec

Italian industrial manufacturer Guarnitec has developed and produced hydraulic sealing systems under the Tecnotex and Tecnolan trademarks since 1969.

The corporate production cluster situated in Solaro north of Milan comprises five specialized divisions: three production plants, a logistics hub, and a central warehouse covering 10,000 square meters.

The plant runs 92 production presses fitted with robotic transfer arms and automated optical measurement systems. Every product is manufactured in Italy from European raw materials.

The quality management system complies with standard ISO 9001, providing uniform dimensions and durable polymer formulations.

Rod and piston hydraulic seals for high-pressure circuits

Rod seals across TSE, GIP, and TTS series paired with BUFFER rings are designed for peak fluid power stresses. The asymmetric dynamic lip maintains a lubricating fluid film while preventing outward leakage during return strokes.

Robust thermoplastic backup rings prevent seal extrusion into clearance gaps under 50 MPa.

For hydraulic cylinder pistons, Guarnitec produces 5-piece TPM assemblies, TDE elements, and solid Tecnolan TTR profiles.

Integrated polyoxymethylene POM split guide rings absorb radial guidance forces, eliminating metal friction against cylinder barrels and preventing internal bypass at speeds up to 1.5 m per s.

Wipers and external rod barrier protection against grit

Guarnitec wiper rings across GHM, GHK, GHW, and GPA lines build a barrier preventing dust, grit, slurry, and moisture from penetrating cylinder cavities. The outer wiper lip conforms closely to the rod surface, removing contaminants during inward motion to preserve primary rod seals.

For open gland housings, GPA metal-reinforced wipers incorporate an outer steel shell press-fitted into cylinder head recesses. Formulations in Tecnolan polyurethane deliver abrasion durability, while fluoroelastomer FKM modifications retain elasticity at temperatures up to +200 degrees C.

Guide rings and prevention of cylinder barrel scuffing

Bearing rings across AGI, AGI/S, AGE, and AFI series center pistons and rods inside cylinder bores, absorbing transverse forces and bending moments. Glass-reinforced polyoxymethylene POM delivers high static load capacity up to 40 N per square mm and prevents jamming under side thrusts.

For severe duties involving high sliding velocities, AFI phenolic fabric rings and TEF/SEAL TF bronze-filled PTFE strips are deployed. These compounds provide chemical resistance against synthetic fire-resistant fluids and completely eliminate metal-to-metal rubbing.

Tecnolan polyurethane, Tecnotex, and fluoroelastomer compounds

The durability of Guarnitec sealing systems stems from proprietary Tecnolan polyurethane formulations. This compound unites high tensile strength, minimal compression set, and resistance to hydrolysis.

Tecnolan seals function at freezing ambient levels down to -35 degrees C without lip embrittlement.

For dynamic pressure pulsations, Tecnotex rubber-fabric composites combine nitrile NBR and reinforced cotton weaves. Fabric plies distribute contact stresses and prevent gap extrusion, while specialized FKM compounds withstand aggressive fluid temperatures up to +200 degrees C.

Engineering selection of cylinder seal kits by equipment nameplate

For scheduled overhauls and equipment rebuilding, engineering specialists verify Guarnitec seal configurations using equipment nameplates or manufacturer part references. When nameplates are illegible, dimensional checks of rods, pistons, and gland housings determine proper replacements.

Each overhaul kit is sealed in protective packaging marked with references and assembly guidance. Shipments proceed under commercial invoicing terms with verified technical documentation. Engineering verification prevents material mismatches and ensures fluid power reliability.

Guarnitec and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Guarnitec and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.