Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 65mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ25 mm
- Stroke65 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S
Round, riveted and rust-resistant, the MACJ25X65-30S pairs a stainless-steel barrel with a hard-chrome plated 10 mm rod inside a rolling-packed aluminium body. The piston's two-way seal stores its own grease, so the 65 mm stroke keeps sliding smoothly through damp or dusty shifts where painted minis seize up.
Double-acting with a 30 mm extend-stroke trim window and a variable air cushion at both ends, this bore 25 unit pushes 245.3 N at 0.5 MPa. Keep a working margin and plan around roughly 147 N of real force, which will lift about 12 kg vertically on a 2:1 ratio. Supply 0.15-1.0 MPa (22-145 psi) and run anywhere from 30-800 mm/s.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 65 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×65 | Stroke length in mm. |
| -30 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S Is Used
Carton flap tuck-down
On a secondary packaging line, the 30 mm trim window lets technicians set the exact flap-press depth per carton size without swapping cylinders, while the dual air cushion tames the 245 N push at high line speeds.
Sample vial pressing
Lab automation stations pressing stoppers into 20-30 mL vials benefit from the stainless barrel's washdown tolerance and the roughly 147 N working force, gentle enough for plastic caps when regulated down.
Belt-track gate actuation
A divert gate on a 300 mm-wide conveyor snaps across the belt within the 65 mm stroke; end-position sensing via the standard magnet feeds the PLC confirmation without separate proximity switches.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S the Right Cylinder?
A bore 20 MACJ manages only 157 N of push at 0.5 MPa; if your fixture needs more than the 245.3 N this model offers, step up to the 402.2 N of the 32 mm bore. The -30 adjuster shortens the extend stroke only - it is a mechanical end stop, so with air lost the rod will still drift and cannot hold a load mid-travel. Match the standard built-in magnet with CMSG, DMSG or EMSG switches for end-of-stroke sensing, and bolt it on via FA flange or LB foot, with I or Y rod knuckles where the tooling needs a flex joint.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X65-30S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; raise supply to 0.7 MPa and push rises to 343.4 N with 288.5 N of pull. Theoretical maximum output at 1.0 MPa is about 50 kgf. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi).
An external stop screw trims the extend stroke anywhere within the ordered 30 mm window - it shortens the stroke, never lengthens it past 65 mm. Treat the stop as a positioning limit, not a brake: on air loss the piston drifts, so clamp or brake externally if the load must stay put. A variable air cushion at both ends plus 30-800 mm/s speed control handles the deceleration.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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