Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-30S 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 MACJ25X75-30S
Changeovers that shift the target by a couple of centimetres are where the 30 mm window earns its keep: on MACJ25X75-30S the stop screw sets extend travel anywhere inside that range, and a variable cushion at both ends takes the sting out of the landing. Double-acting throughout, on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
The MA build is a riveted stack - stainless barrel, aluminium-alloy covers, stainless block - with 20 um hard chrome on the rod to fight the rust pits painted minis collect in wet shops. At 0.5 MPa the 25 mm bore pushes 245.3 N and pulls 206.1 N; at 0.7 MPa push reaches 343.4 N against a 50 kgf theoretical peak. Treat around 147 N as the working push, equal to about 12 kg lifted vertically with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-30S |
|---|---|
| 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 MACJ25X75-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×75 | 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 MACJ25X75-30S Is Used
Load-push arm on a pallet strapper
Set push-off depth per pallet profile with the 30 mm window; 245.3 N at 0.5 MPa squares loads against the strapping head.
Tray stop on a lab autosampler
Micro-trim the stop position so sample racks index true; the standard magnet signals home via a DMSG switch.
Depth stop on a bench drilling fixture
Wind the stop screw to set drilling depth in seconds; cushions stop the quill cleanly at cycle end.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-30S the Right Cylinder?
Below it, a 16 mm bore offers 100.5 N at 0.5 MPa; above it, a 32 mm bore offers 402.2 N - so 245.3 N covers most light clamp-and-push work without oversizing. The adjuster sets where extend travel ends but does not arrest the piston on air loss; use an external stop or locking valve when the load must stay. Choose the FA flange or LB foot, add I or Y knuckles for pivoting linkages, and drop a CMSG, DMSG or EMSG switch straight onto the standard magnet. Guide the load separately over 75 mm - the 10 mm rod tolerates little side-load.
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 MACJ25X75-30S FAQ
245.3 N push and 206.1 N pull at 0.5 MPa, rising to 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical maximum of 50 kgf at 1.0 MPa. Pressure range 0.15-1.0 MPa (22-145 psi); speed 30-800 mm/s.
FA flange and LB foot are the catalogue mounts, and I or Y rod knuckles suit pivoting linkages; the adjustable version omits the SDB and back-cover codes. The 1/8" ports sit in the back cover, and the built-in magnet is standard.
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.
Related AirTAC MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.