Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X40-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X40-30S 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.
- BoreØ63 mm
- Stroke40 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 MACJ63X40-30S
For lines where the throw gets re-set between products, the MACJ63X40-30S offers a 40 mm extend stroke you can wind down through a 30 mm window without swapping cylinders. Double-acting throughout with a variable air cushion at both ends, the 63 mm bore pushes 1557.9 N and pulls 1457.4 N at 0.5 MPa.
Two details pay off daily. The riveted stainless round body and hard-chrome 16 mm rod resist condensation and cleaning spray around wash bays, where painted or plain-aluminium minis corrode first. And because the cushion is adjustable, cycles can run to 800 mm/s without hammering the covers; plan the load near 935 N at 0.5 MPa, about 79 kg of vertical lift at a 2:1 margin. The magnet is factory-fitted, so CMSG, DMSG or EMSG switches mount straight on.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X40-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X40-30S |
|---|---|
| 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.
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 MACJ63X40-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×40 | 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 MACJ63X40-30S Is Used
Die-change clamp on a stamping press
Die stacks vary in height, so the 30 mm trim window re-matches the clamp in minutes; 2181 N at 0.7 MPa grips thick steel blanks.
Index stop on a rotary table
Extends an indexing pin into the platen over 40 mm; cushioned seating stops the pin bouncing at high cycle rates.
Bracket flanging fixture
Presses brackets through a 40 mm flanging throw with about 935 N of practical force at 0.5 MPa from the 63 mm bore.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X40-30S the Right Cylinder?
Sizing check: if the duty needs under roughly 590 N, the 50 mm bore saves money with 981.3 N push at 0.5 MPa; within MA, 63 mm is as big as it gets. Air supply 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s. Mount via FA flange or LB foot, with I or Y rod knuckles for linkages. Bear in mind the adjuster only pins the extend stroke - on air failure or under gravity the rod can creep, so use a separate clamp if position must hold.
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 MACJ63X40-30S 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. Theoretical peak 317.7 kgf at 1.0 MPa. The 16 mm rod carries an M14x1.5 male thread and the air port is 1/4 inch.
No - every MA cylinder leaves the factory with the piston magnet fitted, so CMSG, DMSG or EMSG reed switches mount straight on the barrel for end-of-stroke signals.
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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.
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Most inquiries answered within 7-8 hours.
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