Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-30S 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 MACJ63X250-30S
For clamping and press stations that need serious force in a compact round body, the MACJ63X250-30S produces 1557.9 N at 0.5 MPa and 2181.0 N at 0.7 MPa, topping out at a theoretical 317.7 kgf at 1.0 MPa. The external adjuster shortens the extend stroke by up to 30 mm on site, and variable air cushions at both ends keep arrivals smooth across the 30-800 mm/s speed band.
Because the barrel is stainless and the rod carries a 20 um hard-chrome plate, this cylinder tolerates washdown corners and humid air that ruin painted-steel minis. The magnet comes built in, so CMSG, DMSG and EMSG switches drop straight onto the body for end-of-stroke signalling. In practice, budget about 935 N of push for the actual task at 0.5 MPa - a figure that corresponds to hoisting close to 79 kg vertically with margin to spare.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-30S |
|---|---|
| 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 MACJ63X250-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×250 | Stroke length in mm. |
| -30 | 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 MACJ63X250-30S Is Used
Bench press for bushings
Presses bushings into housings with up to 2181 N at 0.7 MPa; the 30 mm window resets the press-off point after die changes.
Tote ejector in AS/RS bays
Kicks heavy totes off storage shelving on a long 250 mm push; both-end cushions keep the ejector quiet at traverse rates up to 800 mm/s.
Durability test rig actuator
Cycles test articles at programmed loads; the stainless barrel and chrome rod stand up to the coolant mist around life-test benches.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-30S the Right Cylinder?
If the 981.3 N at 0.5 MPa of a 50 mm MA cylinder already covers the load, step down and save compressed air; once you are near the 1557.9 N this bore produces, stay at 63 mm because the series ends here. Long strokes punish poor alignment, so let guideways absorb lateral thrust rather than the rod. Choose FA (flange) or LB (foot) mounting, with I or Y knuckles for swinging loads. Running envelope: 0.15-1.0 MPa (22-145 psi), 30-800 mm/s, air filtered to 40 um. And remember the adjuster sets an extend endpoint - drop the air and the piston coasts.
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 MACJ63X250-30S FAQ
Push is 1557.9 N and pull 1457.4 N at 0.5 MPa; at 0.7 MPa expect 2181.0 N push and 2040.3 N pull. Maximum theoretical force is 317.7 kgf at 1.0 MPa. The extend stroke is field-trimmable across a 30 mm window, the rod is 16 mm with an M14x1.5 male thread, and ports are 1/4 inch (PT blank, G or NPT on order).
Every MACJ ships with a magnet in the piston as standard equipment. AirTAC's CMSG, DMSG and EMSG switches clip onto the stainless barrel to signal extend and retract positions - no special-order piston, no extra magnet kit. That makes mid-line part-presence checks straightforward along the full 250 mm stroke.
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.
Related AirTAC MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X250-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.