Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X25-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X25-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 25mm 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
- Stroke25 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 MACJ63X25-30S
Where a machine needs its extend stop set once and left alone, the MACJ63X25-30S fits: a double-acting MA-series round-body mini cylinder, 63 mm bore and 25 mm stroke, whose stop screw lets you land the extend stroke anywhere in a 30 mm band. Variable cushions at each end tame end-of-stroke shock. This bore makes 1558 N on extend and 1457 N on retract at 0.5 MPa, within a 0.15-1.0 MPa (22-145 psi) supply and 30-800 mm/s speed band.
Construction is a stainless round barrel rolled onto aluminium covers, with a 20 um hard-chrome rod that shrugs off rust in damp shops and outdoor enclosures. The magnet comes built in, so CMSG, DMSG or EMSG switches sense end positions without ordering options. Budget roughly 935 N for actual work at 0.5 MPa - about 79 kg of vertical lift with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X25-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X25-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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 MACJ63X25-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 MACJ63X25-30S Is Used
Test rig anvil
Provides a repeatable 25 mm press stroke on a fatigue or leak-test station, the 30 mm trim re-zeroing the stop for each new fixture.
Lid pre-press
Seats snap-on lids on tubs and trays with 1558 N at 0.5 MPa, cushioning preventing lid scuff during high-speed indexing.
Gripper end stop
Acts as a hard rear stop behind a pneumatic gripper in a pick-and-place cell, absorbing closing energy without metal-on-metal contact.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X25-30S the Right Cylinder?
If 1558 N at 0.5 MPa overshoots the task, the 50 mm bore gives 981 N from the same family; for more force you leave the MA mini series entirely. The 30 mm window is the widest short-stroke trim in this group, useful when dies are swapped between setups. FA flange and LB foot mounts, plus I and Y rod knuckles, cover most fixturing needs. Treat the stop screw as a stroke-setting device only - under a hanging or spring load the rod can creep when air pressure is lost.
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 MACJ63X25-30S FAQ
At 0.5 MPa: 1557.9 N push, 1457.4 N pull. At 0.7 MPa: 2181.0 N push, 2040.3 N pull. Maximum theoretical output at 1.0 MPa is 317.7 kgf. Ports are 1/4" with G or NPT thread options, rod thread M14x1.5, magnet fitted as standard.
A stop screw shortens the extend stroke to any position within the 30 mm ordered window, so maintenance staff can re-set the stop on the machine without swapping cylinders. It sets where the stroke ends; it does not lock the piston, and the variable cushion at both ends keeps the adjusted stop quiet.
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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