Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 80mm 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
- Stroke80 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 MACJ25X80-30S
One cylinder, several product sizes: the stop screw on this 25 mm MACJ retunes the extend stroke anywhere inside the 30 mm window, so changeovers need a spanner, not new hardware. Air drives the rod both ways and a variable cushion at each end dials out end-of-stroke shock. Pushing force is 245.3 N at 0.5 MPa across a 0.15-1.0 MPa (22-145 psi) supply.
Its body is a riveted stainless barrel with a hard-chrome plated rod - sealed, smooth-running and happy in humid or lightly washed-down corners where painted aluminium minis corrode. Keep real work loads near 147 N of that 245.3 N rating; on a vertical lift that equates to about 12.5 kg with a 2:1 margin. The piston magnet is fitted as standard equipment, ready for CMSG / DMSG / EMSG switch mounting.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 80 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 MACJ25X80-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×80 | 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 MACJ25X80-30S Is Used
Parcel sorter diverter
Pushing parcels across a sorter lane with 245 N rated force, the 30 mm window tuning the throw for small and large cartons alike.
Pouch zipper press
Pressing a resealable zipper strip onto filled pouches; about 147 N of usable force is plenty for a light sealing head.
90-degree indexing wrist
Tripping a lever that rotates a fixture a quarter turn on an assembly cell, re-trimmed per part family inside the 30 mm range.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X80-30S the Right Cylinder?
Sizing check: a 20 mm bore MACJ stays under 157 N of push at 0.5 MPa, while stepping to 32 mm buys 402.2 N - this 25 mm bore at 245.3 N sits between them for medium clamping and pushing. Because the adjuster is an end stop rather than a lock, do not count on it to arrest a suspended load if air pressure drops; use valving for holding. FA flange and LB foot are the base mounts, with I and Y rod knuckles available; cushioning is variable at both ends so travel speed can stay high, in the 30-800 mm/s band.
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 MACJ25X80-30S FAQ
Push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; theoretical ceiling 50 kgf at 1.0 MPa. Ports are 1/8" at this 25 mm bore, rod 10 mm with M10x1.25 male thread. Operating pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, cushioning variable at both ends.
Yes. Every MA piston carries a built-in magnet as standard, so CMSG / DMSG / EMSG switches clip on without a special-order build. They give a clean signal for end-of-stroke confirmation even when the extend stroke has been trimmed inside the 30 mm window.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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