Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X175-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X175-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 175mm 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
- Stroke175 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 MACJ25X175-30S
A rolling-packed mini cylinder with a riveted stainless-steel barrel, the MACJ25X175-30S works double-acting and carries an adjustable extend stroke: turn the external stop screw to set the 175 mm stroke anywhere inside a 30 mm window, no shims or reordering needed. A variable air cushion sits at both ends, damping end-of-travel impact so cycle speeds up to 800 mm/s stay gentle on the aluminium covers.
At 0.5 MPa this 25 mm bore pushes 245.3 N and pulls 206.1 N; keep a working margin and plan around roughly 147 N of real effort, which lifts about 12 kg vertically. The 10 mm hard-chrome rod and the grease-retaining two-way piston seal tolerate washdown and humid shop air far better than painted-steel minis, and the piston magnet is fitted as standard so CMSG, DMSG or EMSG switches mount straight on.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X175-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X175-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 175 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 MACJ25X175-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×175 | 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 MACJ25X175-30S Is Used
Bench leak-test clamp
Trim the stop screw so the 147 N working effort snugs automotive sensor housings against a test fixture without crushing them.
Reject gate on a bottling line
The 175 mm reach swings misfilled bottles off the conveyor, and the end cushion keeps the gate from banging at high cycle rates.
Carton kick-off pusher
Double-acting return pulls the pusher back promptly, readying it for the next 245.3 N push stroke at 0.5 MPa.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X175-30S the Right Cylinder?
Compare both neighbours before committing: a bore 20 unit offers only 157.0 N at 0.5 MPa, while a bore 32 jumps to 402.2 N, so 25 mm is the sweet spot for jobs near 150 N of working load. The 175 mm stroke sits inside the 300 mm standard range for this bore and ships with a 1/8" port and M10x1.25 male rod thread. Remember the stop screw is a mechanical end stop only; with air lost the piston will drift back, so add a locking valve if the position must hold.
Mounting options are an FA flange or LB foot, plus I and Y rod knuckles, and the built-in magnet means sensor feedback needs no special piston.
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 MACJ25X175-30S FAQ
Double-acting, bore 25: 245.3 N push and 206.1 N pull at 0.5 MPa, 343.4 N push at 0.7 MPa, and a theoretical maximum of 50 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, temperature -20 to +70 C, fluid air filtered to 40 um. The extend stroke is adjustable within a 30 mm window and both ends carry a variable air cushion.
None are special. The piston magnet is standard on every MA cylinder, so CMSG, DMSG and EMSG switches all clip onto the stainless barrel out of the box and give repeatable end-of-stroke signals across the adjustable 30 mm window.
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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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