Design, manufacturing and overhaul of hydraulic cylinders
From construction machinery to mining equipment, from iron and steel to the defense industry, we manufacture single-acting, double-acting and telescopic hydraulic cylinders for eight sectors.
Certified production ISO 9001 · ISO 14001 · OHSAS 18001 and CE declaration of conformity
Every stage of production under one roof
From machining to welding, painting, measurement and quality control, every process is carried out at our modern facility in Bornova.
We're here to add power to your power
With years of accumulated experience, Özkan Silindir has always made quality products and outstanding service the guiding principles of its work. Across a wide range of hydraulic cylinders, we carefully maintain the fastest, most solution-oriented approach to design, manufacturing and overhaul.
Eight industries, one expertise
Our hydraulic cylinder solutions, organized by the industries we serve.
Glimpses from our facility
Our production facility in Bornova 4th Industrial Estate: from CNC machining to welding, precision measurement to testing and assembly, every stage under one roof.
Why Özkan Silindir?
Technical Support
Quality, ongoing support for all of our products, even after the sale.
Quality Certified
ISO 9001, ISO 14001, and OHSAS 18001 certified management system; CE declaration of conformity.
Belgelerimiz →Years of Experience
A company that has been delivering high-quality, effective service in its field for many years.
From request to delivery
A fast, solution-oriented process for design, manufacturing, and refurbishment.
Needs analysis and design
Machine type, operating conditions, dimensions, and pressure values are determined; the cylinder is designed to suit the application and technical specifications.
Manufacturing or refurbishment
Single-acting, double-acting, or telescopic cylinders are manufactured at our facility, or your existing cylinder is refurbished.
Testing and delivery
Once all inspections are complete, the cylinder is delivered ready for use.
Hydraulic cylinder force calculator
Enter the piston diameter, rod diameter, and working pressure to instantly see push and pull force, oil volume, and speed. Transfer the results to the quote request form with a single click.
- Piston area
- 0 cm²
- Annulus (rod side) area
- 0 cm²
- Oil volume — extend / retract
- 0 / 0 L
- Speed — extend / retract
- 0 / 0 m/s
- Time — extend / retract
- 0 / 0 s
- Area ratio (φ)
- 0
Rod diameter depends on stroke length, mounting type and a buckling check — our team will do this calculation for you.
Results are theoretical; friction, seal losses (5–10%) and buckling must be assessed separately.
Formulas used
Piston area: A = π × D² / 4 · Annulus area: Ar = π × (D² − d²) / 4
Push force: F = p × A (1 bar = 0.1 N/mm²) · Pull force: Fr = p × Ar · 1 tonne-force ≈ 9.81 kN
Oil volume: V = A × S · Speed: v = Q / A · Time: t = S / v
Required bore: D = √(4 × F × k / (π × p)) — the result is rounded to ISO 3320 standard bores (25, 32, 40, 50, 63, 80, 100, 125, 140, 160, 180, 200, 220, 250, 280, 320, 360, 400 mm).
Our Certifications
Our management systems are certified for the manufacture, overhaul, sale, and export of hydraulic cylinders.
- DIN EN ISO 9001:2015 — Quality Management System
- DIN EN ISO 14001:2015 — Environmental Management System
- BS OHSAS 18001:2007 — Occupational Health and Safety Management System
- CE — 2006/42/EC Machinery Directive Declaration of Conformity
Frequently asked questions
The most common questions about hydraulic cylinder manufacturing and overhaul.
What types of hydraulic cylinders do you manufacture?
Do you overhaul or repair existing cylinders?
Which industries do you serve?
Can I order a custom-sized cylinder?
What quality certificates do you hold?
Hydraulic cylinder manufacturing and overhaul in İzmir
Özkan Silindir carries out hydraulic cylinder manufacturing, cylinder overhaul and maintenance and repair at its facility in Bornova 4th Industrial Estate. From construction machinery such as excavators, loaders and dozers to mining equipment, from mobile cranes to vehicle-mounted equipment such as garbage trucks and fire engines, from press brakes and hydraulic presses to iron and steel plants, and from armored vehicles to port cranes and forklifts, it produces single-acting, double-acting and telescopic cylinders in every bore size and length across a wide range of applications.
Our product groups
Engineering tools
Force, buckling, telescopic stage, power, and line calculations; fault diagnosis and overhaul decisions — all free of charge.
Force calculator
Push and pull force, oil volume, speed and the ISO 3320 bore required for your load.
Open toolRod buckling check
Allowable push force by mounting type, slenderness and the safe minimum rod diameter.
Open toolQuote wizard
Define your cylinder in 5 steps and send a complete quote request in one go.
Open toolOverhaul or new?
Answer a few questions to see whether an overhaul or a new cylinder suits you.
Open toolFault diagnosis guide
Pick a symptom to see possible causes, urgency and first checks.
Open toolPower & line calculator
Pump motor power, hose / port flow velocity and rod-side return flow.
Open toolTelescopic cylinder
Force per stage, total stroke and oil volume; last-stage load check.
Open toolUnit converter
Instant conversion between bar–psi–MPa, kN–tonne–lbf, mm–inch and L/min–GPM.
Open toolNeed technical support for your cylinder?
New manufacturing, revision, or maintenance and repair: send us your machine type, cylinder dimensions, and photos, and our team will get back to you.
Get in Touch