Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X150-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X150-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 150mm 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
- Stroke150 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 MACJ25X150-40S
Short-cycle machines live on stroke accuracy, and the MACJ25X150-40S gives you 40 mm of on-site trim over its 150 mm extend stroke through an external stop screw, with variable air cushioning at each end of the double-acting bore. Rated 245.3 N push and 206.1 N pull at 0.5 MPa, it runs 0.15-1.0 MPa (22-145 psi) and 30-800 mm/s.
Construction is a rolled, round-body package: stainless barrel, hard-chrome plated rod, aluminium covers riveted onto the tube - at home in damp or lightly washed areas. The magnet comes built in, so CMSG / DMSG / EMSG sensing needs no options. Treat about 147 N as your working push at 0.5 MPa, which lifts near 12 kg vertically at half rating.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X150-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X150-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 150 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 MACJ25X150-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -40 | 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 MACJ25X150-40S Is Used
Bin sorting pusher
Sweeping small bins onto a side lane in a warehouse sorter - 40 mm of trim absorbs later guide-rail adjustments without reordering.
LED lens press
A gentle assembly press for LED lenses and diffusers, where about 147 N of working force avoids over-stressing the optics.
Dial indexer stop
Acting as the lock-out stop on an indexing dial fixture, sensed by an EMSG switch riding on the standard built-in magnet.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X150-40S the Right Cylinder?
Benchmark it against neighbours: 157.0 N for bore 20, 245.3 N here, 402.2 N for bore 32 - all at 0.5 MPa push. FA flanges and LB feet are standard mount options, plus I and Y knuckles where the tooling swings. Note the 40 mm trim is purely an extend-length stop; it will not hold a load when air fails. At 150 mm the rod is long for its 10 mm diameter, so guide the payload separately to limit bending.
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 MACJ25X150-40S FAQ
Expect 245.3 N on extend and 206.1 N on retract at 0.5 MPa; 343.4 N and 288.5 N at 0.7 MPa; a theoretical 50.0 kgf at 1.0 MPa. Supply 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Variable air cushioning at both ends is tuned with supply air to soften landings at up to 800 mm/s. Mount via FA flange or LB foot, and fit I or Y rod knuckles where the load pivots; port is 1/8" and rod thread M10x1.25.
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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