Hydraulic & Pneumatic Piston Parts Manufacturing
CNC Swiss turning of hydraulic & pneumatic piston parts on the Goodway SW-20: rod ends, plunger pistons, orifices, gland nuts. 15 families, 144 types, ⌀4–20 mm.
Part Families
Piston Rod End
Threaded connection end for hydraulic cylinder piston rod with stepped body and chamfer.
⌀8–20 · L 26–64 mm
10 types
Pusher Rod
Straight pneumatic pusher rod with double-end chamfer and precision diameter tolerance.
⌀4–16 · L 40–120 mm
11 types
Plunger Piston
Plunger piston body with precision-ground cylindrical sealing surface.
⌀6–20 · L 24–67 mm
10 types
Adjustment Spindle
Stroke adjustment spindle with threaded body and hex wrench flat for fine setting.
⌀9.2–19.6 · L 36–82 mm
10 types
Spring Pusher
Spring-loaded pusher pin with stepped body and conical guiding tip.
⌀5–16 · L 24–62 mm
10 types
Rod Eye Stud
Piston rod eye connection stud with internal threaded bore and chamfer.
⌀12–20 · L 22–42 mm
9 types
Tapered Guide Rod
Piston guide rod with full-length taper and precision plunge tip.
⌀6–20 · L 42–98 mm
10 types
Cylinder Head Bushing
Stepped bored bushing guiding the piston at the cylinder head.
⌀10–20 · L 12–28 mm
10 types
Sealing Ring
Metal sealing ring with O-ring seat and central bore.
⌀11–20 · L 3–6 mm
10 types
Guide Bushing
Long bored friction bushing for shaft guidance.
⌀9–20 · L 18–40 mm
10 types
Threaded Guide Bushing
Screw-in guide bushing with head and central bore.
⌀12–20 · L 16–27 mm
9 types
Orifice Restrictor
Threaded orifice with precision small bore for flow restriction.
⌀9.2–19.6 · L 12–22 mm
9 types
Throttle Screw
Adjustable flow-throttle screw with cone tip and knurled head.
⌀8–20 · L 17–36 mm
9 types
Back-up Ring Support
Tapered-face ring supporting the seal against pressure extrusion.
⌀11–20 · L 5–8 mm
9 types
Gland Nut
Hex gland nut with bore that compresses the packing seal.
⌀11.5–19.6 · L 14–25 mm
8 types
Enter ⌀ and L to list matching variants with code and tolerance.
Search this category by sizeThese rotating parts run inside hydraulic and pneumatic cylinders and are used in construction and agricultural machinery, presses and automation lines, furniture machines and general machine building. The category spans 15 families: piston rod end, pusher rod, plunger piston, adjustment spindle, spring pusher, rod eye stud, tapered guide rod, cylinder head bushing, sealing ring, guide and threaded guide bushings, orifice restrictor, throttle screw, back-up ring support and gland nut. On surfaces that directly affect sealing — such as the plunger piston and guide bushings — we hold h6/H7 fit tolerances with a ground cylindrical surface; ±0.01 mm is targeted on critical diameters. We machine steel, stainless steel, brass and aluminum, turning the O-ring seat, threaded body, hex wrench flat and conic chamfer in a single setup. Production runs on the Goodway SW-20 Swiss-type lathe in the ⌀4–20 mm range. Alongside 144 standard types, we manufacture custom piston parts to your technical drawing. Pricing is by quote — specify the part, material and quantity to request one.
The defining part here is HIDA-ITM-04 at L/D 10 — the slenderness a sliding-head lathe is built for. Lengths across the 144 variants run 3–120 mm, the longest being HIDA-ITM-16 at 120 mm, still inside the 207 mm single-setup limit. Operations: 60× thread turning, 27× hex flat milling, 76× axial bore, 27× taper turning, 12× knurling.
108 of the 144 variants reference a DIN or ISO standard; the tolerance classes in use are 6H, 6g, H7, H8, f7, h6, h7, h8, h9.
Every part is CNC-turned to your drawing — series, small batches and custom turned parts. Send your drawing (PDF/DWG/STEP) for a quote.
Frequently Asked Questions
These parts are turned from bar stock in a single setup on the Goodway SW-20 CNC Swiss-type lathe. The threaded end, stepped body and conic chamfer are machined in the same operation; the sealing-critical cylindrical surface of the plunger piston is ground where needed to reach the required surface finish and diameter tolerance. The Swiss-type design gives runout-free, repeatable production on thin, long shafts in the ⌀4–20 mm range.
Steel, stainless steel, brass and aluminum are our standard materials. Pressure-bearing piston rods and plunger pistons are usually machined in tempered steel or stainless; sealing rings, orifices and guide bushings are made in brass or stainless depending on the application. We also evaluate any special material specified on your drawing.
On sealing and guiding surfaces we hold h6/H7 fit tolerances; ±0.01 mm is targeted on critical diameters. Threads, orifice restrictor bores and O-ring seats are machined to the tolerance and surface-finish values on the drawing. The tolerance class depends on the part, so we work from your technical drawing for the most accurate result.
Yes. Beyond the 144 standard types, we manufacture custom piston rods, plunger pistons, orifices and bushings from your technical drawing (PDF, DWG/STEP). Without a drawing we can also work from a sample or your dimensions. We are a workshop that has handled this kind of precision turned work since 2009.
We have no rigid minimum order quantity and produce both prototypes/samples and series runs. Lead time depends on part complexity, material sourcing and quantity, and is stated clearly in the quote. We ship domestically and export abroad from our workshop in Düzce, Turkey.
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