
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X40-10S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 40mm 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.
Dia 63 force in a compact 40 mm stroke: the MACJ63X40-10S delivers 1558 N of push at 0.5 MPa (22-145 psi) with a 10 mm extend-trim and variable air cushions at both ends, hitting a theoretical 318 kgf.
Its stainless round barrel and hard-chrome plated 16 mm rod stand up to humid, washed-down or outdoor conditions far better than painted mini bodies. Working numbers for the buyer: plan on roughly 935 N of real push at 0.5 MPa, which matches lifting about 79 kg vertically on a 2:1 margin.
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X40-10S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 40 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.
| 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.
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -10 | 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.
Clamping cast housings on a machining table, the 40 mm stroke cycling fast while cushions protect the covers.
Seating filling nozzles onto drums on a chemical line, using the 10 mm trim to set seat depth precisely.
Stopping a pallet roller spur in a warehouse conveyor, where the 1558 N push at 0.5 MPa (22-145 psi) halts loaded pallets.
Sizing check both directions: a Dia 50 cylinder gives 981 N at 0.5 MPa (22-145 psi) if the load is lighter, while the 63 bore is the MA series ceiling for anything heavier. Treat the 10 mm stop screw as an extend-stroke limit only and never as a load-holding device, since the rod drifts on air loss. Mount with an FA flange or LB foot, add I or Y rod knuckles where needed, and note the magnet is included as standard for CMSG, DMSG and EMSG switches. Air feeds a 1/4 inch PT port (G or NPT optional) at 30-800 mm/s.
Quick checklist
Push 1558 N and pull 1457 N at 0.5 MPa (22-145 psi); push 2181 N and pull 2040 N at 0.7 MPa; 318 kgf theoretical maximum at 1.0 MPa (145 psi). Dia 63 bore, 16 mm chrome rod with M14x1.5 male thread, 1/4 inch port, extend stroke adjustable over 10 mm.
FA flange and LB foot cover fixed mounts, while I and Y rod knuckles suit pivoting loads; the adjustable version carries no SDB or back-cover code. The standard built-in magnet works with CMSG, DMSG and EMSG switches straight out of the box, and the stainless barrel tolerates damp environments.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.