Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-75S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 250mm 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
- Stroke250 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 MACJ63X250-75S
A 75 mm trim window gives this Dia 63 cylinder the widest on-site stroke tuning available in the MA adjustable line: the 250 mm extend stroke can be shortened anywhere in that range with the stop screw. Double-acting with variable air cushions at both ends, it develops 1558 N of push at 0.5 MPa (22-145 psi) and a theoretical 318 kgf.
Construction is a riveted stainless round barrel with a hard-chrome carbon-steel rod of 16 mm, so it survives wet and mildly corrosive areas that chew up painted mini bodies. Practical planning figure: about 935 N of usable work at 0.5 MPa, enough to lift roughly 79 kg vertically with a 2:1 margin built in.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 MACJ63X250-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -75 | 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 MACJ63X250-75S Is Used
Case ejection gate
Kicking filled cartons off a checkweigher conveyor, the 75 mm range absorbing different carton heights without a cylinder swap.
Battery stacker clamp
Clamping lead-acid traction batteries on a plant transfer cart, where the 1558 N push at 0.5 MPa (22-145 psi) grips the case securely.
Line changeover stop
Adjustable end-of-travel on a packaging machine infeed, letting engineers re-stop the extend stroke during format changeovers.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-75S the Right Cylinder?
Downsizing check: a Dia 50 bore delivers 981 N push at 0.5 MPa (22-145 psi), so if that covers your load the smaller MACJ saves air and cost; if not, the 63 is the ceiling of the range. Remember the trim stop shortens the extend stroke but is not a brake, so plan external locking where a load must stay put. Mount via FA flange or LB foot, add an I or Y knuckle if the load pivots, and the standard magnet reads with CMSG, DMSG or EMSG switches. On 250 mm strokes, guide heavy loads externally to spare the 16 mm rod. Ports are 1/4 inch PT (G or NPT optional), speed 30-800 mm/s.
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 MACJ63X250-75S FAQ
Push is 1558 N and pull 1457 N at 0.5 MPa (22-145 psi); at 0.7 MPa expect 2181 N push and 2040 N pull, with 318 kgf as the theoretical maximum at 1.0 MPa (145 psi). The 16 mm rod threads M14x1.5 and air connects to a 1/4 inch port.
No. Every MA series cylinder ships with the magnet built in, so CMSG, DMSG and EMSG switches clip straight on for end-of-stroke signalling. The stainless barrel also tolerates washdown areas better than painted steel or aluminium minis.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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