Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 75mm 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
- Stroke75 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 MACJ63X75-40S
A 40 mm trim window gives the MACJ63X75-40S wide on-machine flexibility: turn the external stop screw and the extend stroke takes any value from 35 mm up to the full 75 mm. Underneath sits a 63 mm double-acting piston pushing 1557.9 N and pulling 1457.4 N at 0.5 MPa, with a variable air cushion at each end to settle the stop.
In wet or dusty plants the riveted stainless barrel and hard-chrome 16 mm rod resist the corrosion that seizes painted minis, while aluminium-alloy covers keep the body light. Plan on roughly 935 N of usable force at 0.5 MPa after de-rating, enough to shear light gauge scrap or clamp sheet-metal blanks in stamping feeders. FA flange and LB foot mounts, I and Y knuckles, and the standard built-in magnet for CMSG / DMSG / EMSG switches complete the package; it runs on 0.15-1.0 MPa (22-145 psi) air at 30-800 mm/s.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 75 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 MACJ63X75-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -40 | 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 MACJ63X75-40S Is Used
Scrap shear gate
Drives a shear blade through light gauge offcuts at a stamping press; the 40 mm window sets blade height for different stock thicknesses.
Rotary index stop
Raises an indexing stop into a rotary transfer table; the cushion bleed lets the pin seat firmly without jolting the fixture at the top of each cycle.
Pallet divert arm
Pushes a divert arm across a warehouse conveyor lane; 1558 N at 0.5 MPa moves wheeled cages up a shallow incline without stalling.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-40S the Right Cylinder?
Compared with the 50 mm bore (981.3 N at 0.5 MPa), this 63 mm unit carries the same load with far more margin; it is the strongest bore in the MA family. Specify FA flange or LB foot mounting plus I or Y rod knuckles to suit your linkage - adjustable-stroke models do not offer the SDB option. Air connections are 1/4" ports with an M14x1.5 rod thread. Keep side loads off the 16 mm rod by guiding the load externally even on this short 75 mm stroke, and note the stop screw cannot hold position if air 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 MACJ63X75-40S FAQ
Push is 1557.9 N and pull 1457.4 N at 0.5 MPa; at 0.7 MPa the figures are 2181.0 N and 2040.3 N; theoretical peak output is 317.7 kgf at 1.0 MPa. Operating pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, with the extend stroke adjustable across the ordered 40 mm window.
Yes. A variable air cushion sits at both ends, so you can adjust the cushion screws to match load and speed; at 800 mm/s with a heavy press head this stops the 75 mm travel from hammering the covers. The trim screw itself only limits extend travel - it is not a cushion or a brake.
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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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