Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X225-20S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X225-20S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm 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.
- BoreØ63 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 MACJ63X225-20S
Twenty millimetres of on-site stroke adjustment make the MACJ63X225-20S a fit when the end position will be settled during commissioning. Double-acting air pushes 1558 N at extend and 1457 N at retract at 0.5 MPa, with the variable cushion at both ends smoothing stops at up to 800 mm/s. The stainless round barrel, rolled aluminium-alloy covers and hard-chrome plated rod handle washdown and humidity that would pit painted-steel competitors.
Size for about 935 N of true working force at 0.5 MPa, translating to roughly 79 kg of vertical lift once a 2:1 margin is applied. Because the magnet ships built in, CMSG, DMSG and EMSG switches clip on whenever end-of-stroke signalling is needed - no order options, no rework.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X225-20S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X225-20S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 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 MACJ63X225-20S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×225 | Stroke length in mm. |
| -20 | 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 MACJ63X225-20S Is Used
Pallet stop-and-divert at a sorter
Stopping and diverting loaded pallets draws on the 1558 N push at 0.5 MPa, while the 20 mm window adapts the throw to different pallet sizes.
Bush press in an assembly cell
Seating bronze bushings into pump bodies takes steady pressure; dual air cushions end each press without the bounce that could crack a housing.
Sluice gate actuation at a water plant
Humid valve galleries corrode painted cylinders fast, so the stainless round barrel and chrome rod keep the gate cycling through damp seasons.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X225-20S the Right Cylinder?
Bore 50 saves space at 981 N push at 0.5 MPa; nothing larger than the 63 mm bore here exists in this series. The adjustment is purely an extend-stroke end stop, so never rely on it to park a suspended load during a pressure loss. Fix by FA flange or LB foot, use I or Y knuckles on the rod side, and with 225 mm of stroke fit external guides if the load pushes sideways on the 16 mm rod.
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 MACJ63X225-20S FAQ
Yes. The variable air cushion at both ends is set with regulating screws to decelerate the piston, so a 1558 N extend stroke can be stopped softly at speeds up to 800 mm/s without hammering the covers. The 20 mm window still lets you shorten the extend stroke during commissioning.
Push is 1557.9 N and pull 1457.4 N at 0.5 MPa; at 0.7 MPa it delivers 2181 N push and 2040 N pull, with 317.7 kgf theoretical maximum at 1.0 MPa. Pressure range is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), and the extend stroke is adjustable within the ordered 20 mm window.
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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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