Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-50S 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 MACJ63X250-50S
The MACJ63X250-50S pairs the biggest bore in the MA range, Dia 63, with a 250 mm stroke and a 50 mm trim window, so the extend stroke can be shortened on site with a stop screw instead of re-ordering the cylinder. It is double-acting with a variable air cushion at both ends and pushes 1558 N at 0.5 MPa (22-145 psi), with a theoretical ceiling of 318 kgf.
The stainless round barrel with rolled aluminium covers shrugs off washdown and damp shop air, and the hard-chrome plated 16 mm rod keeps wear low over long runs. At 0.5 MPa that 1558 N rating translates to roughly 935 N of practical work once you plan for a margin, which is enough to lift about 79 kg vertically on a 2:1 factor.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-50S |
|---|---|
| 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 MACJ63X250-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | 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 MACJ63X250-50S Is Used
Press transfer fixture
Positioning heavy steel stampings between press stations, with the 50 mm window letting production trim the extend stop after die changes.
Pallet lift-assist
The 79 kg vertical-lift equivalent handles loaded layer pads at 0.5 MPa (22-145 psi), cushions softening each touchdown.
Heavy gate indexing
Pushing a loaded roller-gate section on a bottling line, variable cushions letting the 30-800 mm/s speed stay high without hammering the covers.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-50S the Right Cylinder?
If 1558 N at 0.5 MPa (22-145 psi) is more than the job needs, step down to a Dia 50 MACJ for 981 N; nothing in the MA series is larger, so the 63 is the top force pick. The stop screw only shortens the extend stroke and is not a load-holding lock, so expect the rod to drift if air is lost. FA flange, LB foot, and I or Y rod knuckles all fit, the magnet is built in as standard for CMSG, DMSG and EMSG switches, and on a 250 mm stroke keep side loads light to protect the 16 mm rod. Port size is 1/4 inch PT (G or NPT to order), speed range 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 MACJ63X250-50S FAQ
At 0.5 MPa (22-145 psi) it pushes 1558 N and pulls 1457 N; at 0.7 MPa push rises to 2181 N and pull to 2040 N. The theoretical maximum at 1.0 MPa (145 psi) is 318 kgf. Rod is 16 mm hard-chrome steel, port is 1/4 inch, and the extend stroke trims within the 50 mm window.
The stop screw shortens the extend stroke anywhere inside the 50 mm window, while the variable air cushion at each end absorbs deceleration shock so faster speeds stay practical. It is a mechanical end stop only and will not hold a load if air pressure drops.
Authorized Export Seller
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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