
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X150-100S 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.
Longer travel with a wide 100 mm trim window, the MACJ25X150-100S lets one cylinder serve several product lengths on the same machine. The 25 mm bore pushes 245.3 N and pulls 206.1 N at 0.5 MPa, rising to 343.4 N push at 0.7 MPa, and variable air cushioning at each end softens the landing at whatever stroke you set.
A stainless round barrel with a 20 um hard-chrome rod stands up to washdown and outdoor grit far better than painted minis, and the rolled aluminium covers keep the riveted body sealed over years of cycling. On vertical work this bore lifts about 25 kg at 0.5 MPa; keep real lifts near 12 kg for a 2:1 margin, and size horizontal tooling around 147 N of push.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X150-100S |
|---|---|
| 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.
| 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.
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -100 | 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.
One cylinder serves cartons of several heights by trimming the stop position across the 100 mm window instead of swapping models between products.
Ejects aluminum extrusions of different cut lengths off the saw table; reset the extend trim when the product changes over.
Raises a 12 kg tote a short distance at the transfer point - comfortably inside the roughly 12 kg vertical margin this bore allows with a 2:1 safety factor.
Compare the 32 mm bore (402.2 N push at 0.5 MPa) when loads grow, or the 20 mm bore (157.0 N) for light positioning tasks. At 150 mm of stroke, watch side loads - the 10 mm rod will bend if the tooling cantilevers, so guide the load externally on rails or a bushing. The stop screw shortens the extend stroke within the 100 mm window; it is not a brake, and an unpressurized rod will still drift, so support the load separately during e-stop conditions. FA flange and LB foot mountings, I or Y knuckles on the rod end, and the standard magnet accepts CMSG, DMSG and EMSG switches.
Quick checklist
Push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; theoretical maximum 50.0 kgf at 1.0 MPa. Operating pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed range 30-800 mm/s, air filtered to 40 um.
Use the variable air cushion at both ends to decelerate the load before it reaches the covers, especially when running toward 800 mm/s, and keep the tooling guided so side loads stay off the 10 mm hard-chrome rod. The stainless barrel and riveted covers then hold alignment through washdown and dusty shifts alike.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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