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Premium Hydraulic Hose 4SH DN20 (3/4") 420bar

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€16.79

Shipping costs are not included in the price.

Quantity

lin. m.

Availability:

In stock

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Shipping time: 24 hours

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from €3.64 - GLS Courier (Poland)

Our top pick :) Our warehouse packs orders until 3:00 PM, and GLS picks them up at 5:00 PM. It’s our customers’ most popular choice and the courier that works best for us.

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SEMPERIT 4SH DN20 (3/4") 420 bar hydraulic hose

The SEMPERIT 4SH DN20 (3/4 inch) hydraulic hose with a working pressure of 420 bar in the HYDRON online store is a professional, four-wire hydraulic hose from the multispiral series, designed for the toughest operating conditions. The product is manufactured by the renowned European manufacturer Semperit in accordance with the rigorous EN 856 4SH standard, which guarantees full reliability in power hydraulics systems subjected to extreme loads. The design based on four spiral layers of high-tensile steel wire provides excellent resistance to high static pressure as well as intensive pressure impulses and surges. The hose requires external and internal skiving before the sleeve crimping process, which creates an indestructible, mechanically locked connection with dedicated 4SH or Interlock type fittings.

Key properties and technical parameters of the 4SH DN20 hose

The SEMPERIT 4SH DN20 hydraulic hose is characterized by the highest operating parameters in its diameter class:

Extreme pressure strength: Working pressure of 420 bar and burst pressure of 1680 bar while maintaining a 4:1 safety factor allow for safe operation in systems with the highest load levels.
Four high-tensile steel braids: The construction with four layers of spirally wound steel wire prevents hose swelling and protects the system from failures resulting from working fluid pulsation.
Abrasion and ozone resistance of the outer layer: The outer cover made of black synthetic rubber shows increased resistance to mechanical damage, UV radiation, ozone, and harsh weather conditions.
Wide range of operating temperatures: The hose maintains full flexibility and structural stability in the temperature range from -40°C to +100°C, and in the case of short-term thermal load even up to +120°C.

Technical specification of the product

Below we present a detailed set of technical data for the SEMPERIT 4SH DN20 hose:

Manufacturer: SEMPERIT
Standard of execution: EN 856 4SH / ISO 3862-1 4SH
Nominal internal diameter: DN20 (3/4 inch / 19.0 mm)
Reinforcement: Four spiral braids of high-tensile steel wire
Maximum working pressure: 420 bar (42.0 MPa)
Minimum burst pressure: 1680 bar (168.0 MPa)
Inner layer: Synthetic rubber resistant to mineral and vegetable oils
Outer layer: Synthetic rubber resistant to abrasion, ozone, and weather conditions
Assembly requirement: Hose designed for external and internal skiving

Application in heavy power hydraulics

SEMPERIT 4SH DN20 hydraulic hoses are used in the most demanding industries and mobile hydraulics. They are dedicated to high-power construction machinery (crawler excavators, loaders, drilling rigs), agricultural machinery, forestry equipment (harvesters, forwarders), mining equipment, hydraulic presses, and crimping heads.

Frequently Asked Questions (FAQ)

Why does the SEMPERIT 4SH DN20 hose require skiving before crimping?

4SH type hoses operate under very high pressure of 420 bar. Removing (skiving) the outer and inner rubber layers in the crimping section allows the metal teeth of the Interlock or 4SH sleeve to lock directly onto the steel braid, preventing the fitting from slipping off during operation.

Is the hose sold by the meter or in full coils?

The hose is available for sale per linear meter with the possibility of cutting to any length specified by the customer, as well as in full factory rolls of 20 or 40 meters.