Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 225mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke225 mm
- Port size1/4"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM14×1.5
- 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 MACJ50X225-40S
A riveted stainless round body with a 50 mm bore, the MACJ50X225-40S turns 0.5 MPa shop air into 981 N of push, and its -40 stop screw trims the extend stroke anywhere inside a 40 mm window without changing cylinders. Double-acting by design, it also carries a variable air cushion at each end, so the last part of the 225 mm travel decelerates smoothly instead of banging the aluminium covers.
The hard-chrome plated carbon-steel rod and stainless barrel stand up to humidity and washdown far better than painted mini bodies, which makes this a fit for food benches and damp plants. Working numbers: at 0.5 MPa count on about 589 N of usable force rather than the full 981 N rating, keep speed between 30 and 800 mm/s, and treat the adjuster purely as an extend-side end stop - if air is lost the rod will still move.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 225 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 500 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MACJ50X225-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×225 | 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 MACJ50X225-40S Is Used
Packaging sheet stack lift
Raises stacks of tray or lid stock up to about 50 kg vertically on a cartoner infeed, with the 40 mm trim letting operators fine-tune pick height without swapping cylinders.
Lid press on a tub filler
Snaps lids onto dairy tubs with roughly 589 N of working force at 0.5 MPa, while both-end cushions keep the press landing quiet at high line speeds.
Diverter gate on a washdown conveyor
Pushes product lanes over on a dairy or beverage line, where the stainless barrel and chrome rod resist the wet, caustic environment that pits painted minis.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X225-40S the Right Cylinder?
Compare against neighbours before you commit: bore 40 gives 628 N at 0.5 MPa and bore 63 reaches 1558 N, so this 50 mm size fits mid-force jobs in the 500-600 N working band. Mount it as an FA flange or LB foot, add an I or Y rod knuckle if the load pivots, and rely on the built-in magnet - standard, not an option - to trigger CMSG, DMSG or EMSG switches along the barrel. At 225 mm of stroke, guide the load externally or keep side loads small to protect the rod from 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 MACJ50X225-40S FAQ
At 0.5 MPa it pushes 981 N and pulls 881 N; at 0.7 MPa push climbs to 1374 N with 1233 N on the pull side. Theoretical maximum force at 1.0 MPa is about 200 kgf. Air supply runs 0.15-1.0 MPa (22-145 psi), proof pressure is 1.5 MPa (215 psi), and the 1/4" port feeds the 50 mm bore across a 30-800 mm/s speed range.
No. The magnet is built in as standard on every MA-series cylinder, so CMSG, DMSG or EMSG reed or electronic switches clamp straight onto the stainless barrel. The variable air cushion at each end is set by its own screw, letting you soften the landings at both ends of the 225 mm stroke independently.
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1-Year Warranty
Covers non-human-caused product damage.
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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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