Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-40S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-40S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø63mm bore and 50mm 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
- Stroke50 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 MACJ63X50-40S
Machines get revised, and the 40 mm adjust window on this MACJ63X50-40S is built for it - slide the stop screw and the extend stroke moves anywhere inside that 40 mm band, no new cylinder needed. Underneath sits the full 63 mm bore: 1557.9 N of push at 0.5 MPa, 2181.0 N at 0.7 MPa, double-acting with variable air cushions both ends. In practice that is about 935 N of usable push at 0.5 MPa once a working margin is kept.
The riveted stainless body and 20 um hard-chrome rod handle washdown and coastal air that kill painted minis, and the standard piston magnet pairs with CMSG, DMSG or EMSG switches for position checks. If a job later needs a fixed stroke, the MAC from the same family keeps the cushion without the adjuster; the MAJ swaps to bumpers, the MACD adds a second rod.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 50 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 MACJ63X50-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×50 | 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 MACJ63X50-40S Is Used
Quick-change ejection
Ejecting parts from a small mold or fixture where product depth changes per run - the 40 mm window re-strokes in minutes.
Pallet clamp on AGV
A load-lock on an automated guided vehicle gripping pallet edges; 1557 N of grip at 0.5 MPa holds during 79 kg-class transfers.
Sorter divert arm
Kicking cartons off a sorter lane at speed, with both-end cushions keeping the 800 mm/s stop quiet.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X50-40S the Right Cylinder?
Size down to the 50 mm bore (981.3 N push / 880.8 N pull at 0.5 MPa) when 935 N of usable force covers the job; this 63 mm model is the ceiling of the MA series. The 40 mm trim is an extend-side mechanical stop - with air lost the piston still creeps, so never rely on it to park a hanging load.
FA flange, LB foot and I or Y rod knuckles suit most fixtures, and the adjustable build omits the SDB and back-cover mounting options. The 1/4 inch port supports the 30-800 mm/s band; the M14x1.5 male rod thread takes standard rod clevises.
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 MACJ63X50-40S FAQ
Push is 1557.9 N at 0.5 MPa and 2181.0 N at 0.7 MPa, with pull of 1457.4 N and 2040.3 N respectively; theoretical maximum at 1.0 MPa is 317.7 kgf. The bore runs 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi).
FA flange or LB foot bases bolt it down, and I or Y knuckles on the M14x1.5 male rod handle pivoting loads. The built-in magnet works with CMSG, DMSG and EMSG switches right out of the box, while the 40 mm stop screw trims the extend stroke and both-end air cushions tame the landing at up to 800 mm/s.
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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