Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-50S 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 MACJ25X75-50S
Service teams like the MACJ25X75-50S because the extend stroke can be shortened to 25 mm on site - the 50 mm window turns one cylinder into a whole family of settings. Double-acting with a variable cushion at both ends, it runs on 40 um filtered air at 0.15-1.0 MPa (22-145 psi) at speeds of 30-800 mm/s.
Force is mid-class: 245.3 N of push at 0.5 MPa from the bore 25 piston, equivalent to lifting about 25 kg vertically, or around 12 kg if you keep a 2:1 safety factor. The riveted stainless barrel and 20 um hard-chrome rod resist the moisture and mild chemicals that pit painted-steel mini cylinders in food plants and outdoor cells.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-50S |
|---|---|
| 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 MACJ25X75-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -50 | 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 MACJ25X75-50S Is Used
Lid clamp on a bench-top heat sealing press
Trim from 25 to 75 mm to clamp trays of different depths; at 0.7 MPa push climbs to 343.4 N, enough to hold lids firmly against a heated seal bar.
Load squarer at a dock leveller
Mounted on an LB foot bracket, the cylinder nudges pallets square before strapping; its roughly 25 kg vertical-lift equivalent also suits light lift-assist duties at the door.
Part-present pusher in an electronics kitting cell
The 50 mm window absorbs fixture variations between PCB trays, and CMSG switching via the built-in magnet verifies full extension before the robot picks.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X75-50S the Right Cylinder?
Compare before ordering: the MAJ20 (bore 20) reaches just 157 N push at 0.5 MPa while the MACJ32 delivers 402.2 N, so this bore 25 sits squarely between them at 245.3 N. If the load hangs on the rod, remember the adjuster is a mechanical end stop for the extend stroke, never a load-holding brake - position will drift on air loss. Mount on an FA flange or LB foot, fit I or Y rod knuckles as the job needs, and connect through the 1/8" port (PT standard, G or NPT to order) with the standard magnet feeding CMSG or DMSG switches.
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 MACJ25X75-50S FAQ
Push 245.3 N and pull 206.1 N at 0.5 MPa, push 343.4 N at 0.7 MPa, maximum theoretical force 50 kgf at 1.0 MPa. Stroke is adjustable within the 50 mm window (extend settable from 25 to 75 mm), cushioning is variable at both ends, working pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
FA flange and LB foot brackets bolt to the rolled aluminium covers, while I and Y rod knuckles take the load side. The adjustable-stroke version has no SDB or back-cover code option, so plan the machine frame around FA or LB from the start.
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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.
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Most inquiries answered within 7-8 hours.
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