Custom hydraulic cylinders. Engineered, tested, delivered.
Project-based hydraulic cylinder production to ISO 6020-1, ISO 6020-2 (CETOP), ISO 6022 and welded heavy-duty — manufactured at the Soydan Group cylinder plant in İzmir. Design, machining, welding, painting, assembly and marking all happen in-house at the İzmir AOSB factory — the architecture behind blank-sheet-to-shipped-unit in under 10 weeks. UK buyer? See UK supply & our London office.
Standard range to project ceiling.
The standard catalogue covers the majority of OEM and industrial requirements. Larger bore, longer stroke or higher pressure opens the project range through engineering review.
Six families. One engineering discipline.
Hydrocyl™ is a registered trademark of Soydan Hidrolik · WIPO WO500000001719832. Every Hydrocyl cylinder carries the brand's engineering file, serialised test report and the full Soydan quality stack behind it.
Six families built to the international standards most commonly specified by European industrial OEMs — with ATEX / IECEx and SIL2 servo variants on request. Online configurator launching Q3 2026 — until then, the Drawing Studio and Instant Quote tools cover the gap.
Six families, side by side.
The same figures the family pages give, lined up for comparison. Mounting-dimension tables (A, B, H1–H6, M, L, R) are issued at quotation with the 3D model and GA drawing.
| Family | Standard | Bore | Rod | Pressure | Test pressure | Stroke | Mounting styles | Tube / rod | Seals | Construction & inspection | Lead time |
|---|---|---|---|---|---|---|---|---|---|---|---|
| HYC-N | ISO 6020-1 | Ø25–200 mm | Per bore — see family table | 160 bar nominal · 210 bar max | ≥ 315 bar (1.5×) | Up to 4,000 mm standard | MF3/MF4 flange, MP3/MP5 clevis, MT4 trunnion, MS2 foot, MX5 rod-end thread, spherical clevis | Cold-drawn honed European tube, ISO H8, Ra ≤ 0.4 µm; Hard-chrome-plated European bar, ISO f7, Ra ≤ 0.25 µm; induction-hardened chrome, nickel-chrome duplex or HVOF tungsten-carbide on project basis | Kastaş, Trelleborg and other European brands — matched to fluid, speed and temperature; specified by the KP seal-package code | Machined construction; welded ends where specified — EN ISO 3834-2, NDT Level II on welds. 100% tested to ISO 10100 at working pressure and 1.5× working pressure; serialised report per cylinder | Under 10 weeks ex-works İzmir for custom builds |
| HYC-T | ISO 6020-2 (CETOP) | Ø25–320 mm | Per bore — see family table | 160 bar nominal · 250 bar max | ≥ 375 bar (1.5×) | Up to 4,000 mm standard | MF3/MF4 flange, MP3/MP5 clevis, MT4 trunnion, MS2 foot, MX5 rod-end thread, spherical clevis | Cold-drawn honed European tube, ISO H8, Ra ≤ 0.4 µm; Hard-chrome-plated European bar, ISO f7, Ra ≤ 0.25 µm; induction-hardened chrome, nickel-chrome duplex or HVOF tungsten-carbide on project basis | Kastaş, Trelleborg and other European brands — matched to fluid, speed and temperature; specified by the KP seal-package code | Tie-rod construction, no structural welds. 100% tested to ISO 10100 at working pressure and 1.5× working pressure; serialised report per cylinder | Under 10 weeks ex-works İzmir for custom builds |
| HYC-F | ISO 6022 | Ø50–400 mm | Ø36–280 mm (standard pairings) | 250 bar nominal · 350 bar max | ≥ 525 bar (1.5×) | Up to 4,000 mm standard | MF3/MF4 flange, MP3/MP5 clevis, MT4 trunnion, MS2 foot, MX5 rod-end thread, spherical clevis | Cold-drawn honed European tube, ISO H8, Ra ≤ 0.4 µm; Hard-chrome-plated European bar, ISO f7, Ra ≤ 0.25 µm; induction-hardened chrome, nickel-chrome duplex or HVOF tungsten-carbide on project basis | Kastaş, Trelleborg and other European brands — matched to fluid, speed and temperature; specified by the KP seal-package code | Round-flange heavy duty; welded elements to EN ISO 3834-2, NDT Level II. 100% tested to ISO 10100 at working pressure and 1.5× working pressure; serialised report per cylinder | Under 10 weeks ex-works İzmir for custom builds |
| HYC-W | To customer specification | Ø40–400 mm standard · Ø1,000 mm project | Ø70–280 mm standard · Ø700 mm project | 250–350 bar nominal · 400 bar project | 1.5× nominal | Up to 4,000 mm standard · 12,000 mm project | To drawing — any ISO style or custom | Cold-drawn honed European tube, ISO H8, Ra ≤ 0.4 µm; Hard-chrome-plated European bar, ISO f7, Ra ≤ 0.25 µm; induction-hardened chrome, nickel-chrome duplex or HVOF tungsten-carbide on project basis | Kastaş, Trelleborg and other European brands — matched to fluid, speed and temperature; specified by the KP seal-package code | Fully welded body — EN ISO 3834-2, NDT Level II on all structural welds. 100% tested to ISO 10100 at working pressure and 1.5× working pressure; serialised report per cylinder | Under 10 weeks ex-works İzmir for custom builds |
| HYC-M | Custom / OEM drawing | Ø40–250 mm | Per drawing | 250–350 bar nominal | 1.5× nominal | Up to 4,000 mm standard | Mill-type — per OEM drawing | Cold-drawn honed European tube, ISO H8, Ra ≤ 0.4 µm; Hard-chrome-plated European bar, ISO f7, Ra ≤ 0.25 µm; induction-hardened chrome, nickel-chrome duplex or HVOF tungsten-carbide on project basis | Kastaş, Trelleborg and other European brands — matched to fluid, speed and temperature; specified by the KP seal-package code | Welded / mill-type — EN ISO 3834-2, NDT Level II. 100% tested to ISO 10100 at working pressure and 1.5× working pressure; serialised report per cylinder | Under 10 weeks ex-works İzmir for custom builds |
| HYC-S | ISO 6020-2 based, servo | Ø40–200 mm | ISO f6 servo tolerance · straightness ≤ 0.1 mm/m | 160–250 bar nominal | 1.5× nominal | Up to 4,000 mm standard | MF3/MF4 flange, MP3/MP5 clevis, MT4 trunnion, MS2 foot, MX5 rod-end thread, spherical clevis | Cold-drawn honed European tube, ISO H8, Ra ≤ 0.4 µm; Hard-chrome-plated European bar, ISO f7, Ra ≤ 0.25 µm; induction-hardened chrome, nickel-chrome duplex or HVOF tungsten-carbide on project basis | Kastaş, Trelleborg and other European brands — matched to fluid, speed and temperature; specified by the KP seal-package code | Tie-rod base; integrated magnetostrictive sensor, SIL2-capable on request. 100% tested to ISO 10100 at working pressure and 1.5× working pressure; serialised report per cylinder | Under 10 weeks ex-works İzmir for custom builds |
Every option, one code.
A single structured code specifies the complete cylinder — family, bore, rod, stroke, mounting, pressure rating, cushioning, sealing and paint.
From enquiry to ex-works.
Made here. Start to finish.
Tube to crate under one roof in İzmir — what the process looks like on our floor.
Built from European steel. Proven twice.
What goes into a Hydrocyl™ cylinder — and what comes out with it. Every claim below ships as paper: a signed, serialised test report and the full engineering file accompany each unit.
Every cylinder. Tested, not sampled.
100% of production goes through the ISO 10100:2020 acceptance-test protocol on our in-house benches — welds having already passed NDT Level II inspection, gauges under calibration control. A cylinder that has not passed every step below does not ship.
Draw it. Price it. Today.
Cylinder questions. Answered plainly.
01 What is the maximum bore, stroke and pressure you can manufacture?
Standard production covers bores Ø25–400 mm with strokes to 4,000 mm. On project basis Hydrocyl™ cylinders go to Ø1,000 mm bore, 12,000 mm stroke and 400 bar working pressure — mill-type, welded and round-flange constructions.
02 Which standards are the cylinders built to?
ISO 6020-1 (mobile), ISO 6020-2 / CETOP (tie-rod), ISO 6022 (round-flange heavy duty) and fully-welded custom envelopes. Welding is certified to EN ISO 3834-2 with NDT Level II inspection on welded joints.
03 How is every cylinder tested?
100% of production is tested to ISO 10100: proof pressure at 1.5× working pressure on both ends, internal and external leakage, minimum-pressure travel, stroke and cushioning. Every unit ships with a signed, serialised test report.
04 What is the lead time for a custom hydraulic cylinder?
Under 10 weeks ex-works İzmir for custom engineered cylinders — drawing review and an application data sheet come back within 48 hours of enquiry.
05 Do you accept one-off cylinders or only series production?
Both. One-off specials, short series and repeat OEM production run on the same line — the engineering file (2D/3D CAD, buckling calculation, test report) is produced for every order size.
06 Do you deliver to the UK, Germany and the rest of Europe?
Yes — active OEM supply runs across the UK, DACH and wider Europe, with a London office at Chiswick Park handling UK and European accounts. Cylinders ship in ISPM-15 heat-treated crates with ports plugged and customer RAL topcoat.
07 What documentation comes with each cylinder?
A complete engineering file: 2D and 3D CAD drawings for every part, buckling calculation for long strokes, the serialised ISO 10100 test report, and material certificates on request.
Send your drawing. We'll send a quote.
Every enquiry reviewed by in-house engineering. Quote turnaround 1–3 working days.
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