Hydraulic Cylinders

Hytec Engineering is one of Africa’s largest hydraulic cylinders suppliers and manufacturers for the mining, agriculture, mobile, marine, iron and steel and power generation industries. We offer the full range of mill type, tie rod and large industrial cylinders from leading brands. With proven technical depth and manufacturing capability, Hytec Engineering delivers bespoke hydraulic cylinders aligned to your exact operational requirements.

S250 Series

CETOP cylinders: EN8 chrome rods and ST52 N4 honed barrels extend seal life; fluid/seal compatible; light–heavy, mobile; to 250 bar.

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Mill Type Cylinders

Service-friendly modular: 9 mounts and standard sizes for quick cylinder swaps to boost uptime; medium to extra heavy; steel and paper mills.

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Mobile Cylinders

Flexible mounts; patented safety vent and self-adjusting damping; service-friendly modular for harsh duty; heavy mobile: excavators, trucks.

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Our specialists have experience across a wide variety of industry sectors and understand the special requirements of your application. Contact us today!

Your turnkey hydraulic cylinders specialist

Hytec Engineering is Africa’s premier hydraulic cylinder specialist, delivering a full-lifecycle solution from precision design utilising 3D modelling to the supply and re-manufacture of cylinders to OEM standards.

Our robust product offering includes the S250 Series, Mill Type, and specialist Mobile Cylinders (rated up to 700 bar), complemented by Piston Accumulators and Manifold Blocks.

All services, encompassing complete pressure testing up to 700 bar and complex in-house machining, are managed centrally for swift turnaround and are underpinned by ISO 9001 certification, a 1-year/6 000-hour warranty, and comprehensive failure analysis.

We leverage the extensive quality assurance and distribution network of Bosch Rexroth Africa across 30 African service centres.

Get in touch with Hytec Engineering to find a cylinder matched to your specific application!

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Our services

Service Exchange

We understand the importance of maximum uptime for your operations. We provide a temporary replacement cylinder while yours is serviced.

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Hydraulic Cylinder Repairs

We repair, rebuild and refurbish your hydraulic cylinders to the most stringent OEM specifications at our world-class facility in Johannesburg.

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Re-manufacture

We re-manufacture hydraulic cylinders to OEM standards with a 1-year/6 000-hour warranty, supported by comprehensive failure analysis.

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More about our range of products and services

Mill-type hydraulic cylinders

This mill-type range range features a service-friendly modular system with nine mounting types.

The standardisation of these dimensions enables simple hydraulic cylinder exchange, which boosts production and uptime. They are ideal for heavy industrial applications, including use in steel & paper mills.

S250 Series

These hydraulic cylinders, designed and tested by Hytec Engineering, feature a nominal working pressure of 250 bar. They have been engineered for excellent reliability, performance, and efficiency in heavy industrial and mobile applications.

Constructed from chrome-plated EN8 rods and ST52 cylinder barrels that are honed to an N4 finish, the S250 achieves longer life on gland seals and shaft surface protection and adheres to CETOP standards.

Mobile cylinders

Hytec Engineering's mobile cylinders feature robust construction, flexible mounting, and patented safety venting, paired with self-adjusting damping capabilities.

These cylinders are built with a service-friendly modular design specifically engineered to operate reliably under harsh conditions in heavy mobile equipment such as excavators, trucks, and other heavy equipment.

Service exchange

Our extensive and comprehensive stockholding of new & refurbished hydraulic cylinders for popular earthmoving models allows for a Service Exchange program. This rapidly replaces damaged or worn cylinders from consignment stock, minimising downtime for your operations.

World-class service and repair for hydraulic cylinders

Hytec Engineering is Africa’s largest hydraulic cylinder specialist, providing a comprehensive, full-lifecycle solution across the mining, industrial, marine, and mobile sectors with 30 service support centres across Africa.

Repair and quality assurance

All hydraulic cylinder repair and re-manufacture work is conducted to OEM standards, adheres to SABS standards, and is ISO 9001:2015 certified. We provide a strong quality promise:

  • A 1-year/ 6 000 hours warranty on re-manufactured cylinders.
  • Comprehensive failure report & analysis with every job.

Material traceability and full inspection & test reports are supplied with every completed cylinder..

In-house capabilities (one-stop partner)

Hytec Engineering is your one-stop provider, with all facilities under one roof, enabling fast turnaround times. Our innovative services include:

  • Strip & Assess: Tag, photograph, clean, and strip cylinders on arrival. Clean/inspect components. Measure shafts/barrels; reports available.
  • Buying: Wide range of cylinders for popular earthmoving models. Consignment stock held at select branches.
  • Boring: Line boring up to 300 mm diameter and 400 mm deep. Drill/tap flange PCDs up to 1.5 m to restore original geometry.
  • Hydraulic Cylinder Design: Design to customer duty and industry standards. New parts use approved drawings; material certs available on request.
  • Milling: CNC or conventional milling chosen by complexity/quantity to optimise precision and tight tolerance stack-up.
  • Turning: Semi-CNC lathes for precision barrels/shafts; 10 m capacity, 900 mm max swing at 6 m. SG42 is used for mobile cylinder glands.
  • Quality: Dimensional checks per drawings with zero deviation tolerance. QC data logged; accepted parts tagged; reports on request.
  • Assembly: Large bores assembled vertically for proper seal seating. Bolts torqued to OEM specs with calibrated tools. Manifolds/pipes/valves fitted before testing.
  • Testing: Pressure test to 70 MPa max. Stroke/pressure recorded on Hydrotechnik; transducers calibrated annually. Compensated test reports with graphs supplied.
  • Painting: Post-test clean; sponge blast to SA2.5, 45–75 μm profile. High-tech coating spec with Varthane (Varcol) for corrosion protection.
  • Packaging: After final inspection/sign-off, wrap in VCI plastic and crate or palletise for transport.
  • Delivery: Exchange cylinders for popular earthmoving models; consignment stock at select branches. Ask about maintenance schedules and seal kits.

LATEST NEWS

14 July 2026

60 years of driving forward

Sixty years ago, a vision took root on African soil.

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13 July 2026

Celebrating 60 Years with a Heartfelt Family Day

A celebration of employees, families, and success.

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9 July 2026

60th Anniversary Customer Day Celebration

Honouring customers, partners and colleagues on this special occasion.

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25 June 2026

Africa's industrial future is still being written

and the biggest opportunities still lie ahead

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Read more of the Group’s latest news here.

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