Hydraulic replacement parts and components – high availability, quickly dispatched.

Komponenten Knoll

Selected brand quality with competent technical advice.

As an independent component trader and supplier we offer a broad and pre-selected range of high-quality hydraulic components, hydraulic spare parts and accessories. If required, we provide the complete technical conversion of outdated components - even from non-stock manufacturers.
Our customers appreciate the individual technical support, especially for special components and special requirements, but also the fast and uncomplicated order processing of simple hydraulic components and industrial supplies through our online shop.

Component range

The exactly correct component for your function.


Hydraulic valves

Pressure valves, shut-off valves, directional valves, flow control valves, switching valves, continuous valves

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Hydraulic pumps

Gear pumps, axial piston pumps, vane pumps, radial piston pumps

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Hydraulic cylinders

double-acting and single-acting hydraulic cylinders, differential cylinders, synchronous cylinders

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Hydraulic motors

Axial piston motors, gear motors, constant motors, adjustment motors, radial piston motors

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Hydraulic accumulators

Suction filters, return filter, pressure filter, ventilation filter, filter elements, filter units, filter accessories

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Hydraulic filter

Suction filters, return filter, pressure filter, ventilation filter, filter elements, filter units, filter accessories

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Sensor systems

Pressure sensors, level sensors, temperature sensors, position sensors, flow-rate sensors, flow sensors, particle sensors, contamination sensors

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Steuerblöcke / Anschlussplatten

Control blocks/connection plates

Manifold connection plates, system control blocks, cover plates, intermediate plates, press control blocks

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Position controllers, axle controllers, direction controllers, temperature controllers, speed controllers, p/Q controllers or pressure controllers

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Drive technology

Hydraulic drives for part turn valves, hydraulic servo direct drives

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Connection technology / accessories

Valve plug, M12 plug, M12 cable, valve cable, plug connector, sensor/actuator cables, adapter

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Heating / cooling

Heating / cooling

Hydraulic oil coolers, hydraulic coolers, plate heat exchangers, tube bundle heat exchangers, screw-in heaters, hybrid heat exchangers

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Hoses/ fittings / seals

Hydraulic hoses, hydraulic fittings, hydraulic seals, hydraulic couplings, hydraulic pipes

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Our partners

Quality connects

One of our particular strengths is the extensive partner network we have built up through numerous sales partnerships. We do not sell substandard components, only proven quality from original equipment manufacturers - hydraulic components from Bosch-Rexroth, MOOG, MP-Filtri, HAWE, Eaton, Hydac, Parker, Siemens, Danfoss and many more. 

Causes of abrasion

Poor quality and contamination of the hydraulic medium will reduce the durability of your components.

Abrasion, dirt or obsolescence are the main causes for the regular replacement or necessary conversion of the hydraulic components. In addition, an incorrect viscosity of operating media influences the lubricating properties or operating temperatures.

  • Contamination of the hydraulic medium
  • Improper operating medium
  • High temperatures and leaks
  • Unsuitable ambient conditions
  • Obsolete operating media
  • Improper component selection and operating errors (excessive load changes, cavitation, overload, overpressure, ignoring protective mechanisms)
  • Lack of maintenance

Keeping the focus on your application

Whether high-quality ATEX components for explosion-proof areas with all necessary classifications, hydraulic components for high and medium pressure hydraulics, or special components for mobile hydraulics or stationary industrial hydraulics with all necessary approvals – as a supplier and hydraulics specialist, we always offer you a system-compatible solution.


Your replacement part already in the factory the next day.

Because we know that sometimes it has to be quick, we have optimized our paths and processes for you. For orders arriving by midday, we dispatch your components on the same day. Even by 3 pm it can still be an express delivery.

Short delivery times

Due to high stock availability, well-functioning supplier networks and fixed contact partners.

Manufacturer independent

Thus free to choose without any compromise.

Technical advice

For the right product and a sustainable hydraulic solution.

100 % quality

In the form of reliable products with a long service life and high spare parts availability.