Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-75S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 75mm 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
- Stroke75 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 MACJ25X75-75S
Need one cylinder for several product sizes? The MACJ25X75-75S covers its entire 75 mm travel with an adjustable window, so a stop screw sets the extend stroke wherever the job needs it. It is a double-acting round-body unit with a variable air cushion at each end - run it faster or carry heavier loads without hammering the covers.
At 0.5 MPa the bore 25 piston develops 245.3 N of push; treat about 147 N as the practical working level. The high-precision stainless tube and hard-chrome plated 10 mm rod shake off washdown and outdoor damp that would corrode painted minis, and the magnet that comes standard lets CMSG, DMSG or EMSG switches bolt on without a special piston.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 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 MACJ25X75-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -75 | 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 MACJ25X75-75S Is Used
Depth stop on a pneumatic drilling jig
One cylinder serves several jig plates: set the stop anywhere across the full 75 mm window, and the 147 N working force feeds bits gently into aluminium extrusion.
Hold-down clamp on a welding fixture table
At 0.7 MPa the bore 25 piston clamps brackets with 343.4 N while the variable cushion prevents the clamp arm from snapping onto the weldment.
Bin kicker on a picking line for auto spares
Side-load stays low at full stroke when the kicker rides a simple guide rail, and the stainless barrel stands up to the oil mist typical of a machine-shop picking area.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-75S the Right Cylinder?
Against neighbours in the range, MAJ20 offers 157 N push at 0.5 MPa and MACJ32 offers 402.2 N; bore 25 splits the difference with 245.3 N, enough for roughly 147 N of continuous work. At the full 75 mm stroke keep cantilevered side load off the 10 mm rod or add external guiding, because bending loads shorten seal life. Mount with the FA flange or LB foot (I and Y knuckles for the rod end); the adjuster acts as a limit stop only and will not lock the piston if supply air fails.
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 MACJ25X75-75S FAQ
245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push at 0.7 MPa and 50 kgf theoretical max at 1.0 MPa. Its 75 mm window covers the whole stroke, the air cushion is variable at both ends, and rated speed is 30-800 mm/s at 0.15-1.0 MPa (22-145 psi).
The high-precision tube with its hard-chrome plated 10 mm rod resists washdown chemicals and outdoor moisture that pit painted mini cylinders, and the two-way piston seal stores grease for long maintenance intervals. The variable cushion at each end then lets you trim deceleration to match the exact load.
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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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