Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø25mm bore and 100mm 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
- Stroke100 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 MACJ25X100-50S
Adjustability worth half the window: the MACJ25X100-50S lets you shorten the extend stroke by up to 50 mm on the machine, no shimming required. It is double-acting with a variable cushion at both ends, and the 25 mm bore is rated 245.3 N push / 206.1 N pull at 0.5 MPa across a 0.15-1.0 MPa (22-145 psi) supply range.
Match that to real payloads: 245.3 N converts to about 25 kg of vertical lift, so specify roughly 12 kg parts for a 2:1 safety split. The riveted stainless tube and hard-chrome plated 10 mm rod cope with humid, lightly corrosive air that defeats painted minis, and both-end cushioning keeps landings quiet from 30 to 800 mm/s.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 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 MACJ25X100-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×100 | 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 MACJ25X100-50S Is Used
Oven door pusher
Cracks open bakery oven doors at cycle end; the 50 mm window suits the varied door latches found along one line.
Cup denester on a filling line
Separates the top cup from a stacked magazine; trimming extend travel prevents double-picks when stack heights vary.
Roller engage on a wire feeder
Presses the tension roller onto welding wire; the 245 N push keeps feed slip-free over 100 mm of approach travel.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ25X100-50S the Right Cylinder?
For frame of reference, bore 20 pushes near 157 N at 0.5 MPa and bore 40 pushes 628.3 N, against 245.3 N from this 25 mm barrel. Be aware the stop screw holds extend position only - an unpressurised rod is free to slide, so add a valving solution or external stop if the load must stay put.
Face mounting uses the FA flange and base mounting the LB foot, with I or Y knuckles on the M10x1.25 rod thread; adjustable-stroke versions omit SDB. The piston magnet comes standard, which is why CMSG, DMSG and EMSG switches work out of the crate.
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 MACJ25X100-50S FAQ
The 25 mm bore gives 245.3 N push and 206.1 N pull at 0.5 MPa, or 343.4 N push and 288.5 N pull at 0.7 MPa, with a theoretical 50.0 kgf ceiling at 1.0 MPa. Feed it 0.15-1.0 MPa (22-145 psi) and run 30-800 mm/s.
Standard choices are an FA flange or LB foot, with I and Y rod knuckles on the M10x1.25 rod thread; adjustable models carry no SDB option. The stop screw trims extend travel within the 50 mm window but never acts as a position brake when air is lost.
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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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