Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-50S 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 MACJ63X75-50S
Half of the 75 mm travel is adjustable on the MACJ63X75-50S: the -50 window lets the stop screw set the extend stroke anywhere from 25 mm upward, tuned by hand in minutes. The 63 mm double-acting piston behind it pushes 1557.9 N and retracts with 1457.4 N at 0.5 MPa, and a variable cushion at both ends tames the stop even at the full 800 mm/s top speed.
The magnet comes built in as standard, so CMSG, DMSG or EMSG switches snap onto the stainless barrel for end-of-stroke confirmation without special orders. For sizing, the 1557.9 N thrust equals about 158 kg of vertical lift on paper; with a 2:1 margin, call it roughly 79 kg per cylinder. If the job later calls for a fixed stroke instead of a trimmable one, the MAC series shares this bore and force class, while MACD adds a second rod. Supply is 0.15-1.0 MPa (22-145 psi).
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-50S |
|---|---|
| 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 MACJ63X75-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 63 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -50 | 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 MACJ63X75-50S Is Used
Die cart locator
Pins die carts into the press-bay loading station; the wide 50 mm window absorbs position variation between different cart designs.
Hinged chute lift
Lifts hinged inspection chutes on a food processing line; the stainless barrel tolerates daily hose-down, and with a two-to-one margin it handles chute assemblies near 79 kg.
Machine retrofit ejector
Retrofits onto older machines as an adjustable ejector or stop; 1/4" ports and an M14x1.5 rod thread match common replacement hardware.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ63X75-50S the Right Cylinder?
If a tonne and a half of push is more than the task needs, the 50 mm bore in the same series delivers 981.3 N at 0.5 MPa; bore 63 tops out the MA range. Mount through the FA flange or LB foot and pick I or Y knuckles for pivoting tooling. Because the -50 window covers two thirds of the full stroke, one cylinder can serve several fixture variants - but treat it as an end stop only, never as a load-holding device. The 75 mm stroke sits well inside this bore's 500 mm standard limit; longer non-standard strokes are made to order.
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 MACJ63X75-50S FAQ
At 0.5 MPa: 1557.9 N push and 1457.4 N pull. At 0.7 MPa: 2181.0 N push and 2040.3 N pull. Theoretical maximum is 317.7 kgf at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi) air at 30-800 mm/s, with the extend stroke hand-adjustable across the 50 mm window.
No. The stop screw is a mechanical end stop that only shortens the extend stroke; it never lengthens travel past the ordered 75 mm and it cannot lock the rod mid-stroke. On air loss the piston still drifts, so fit a locking valve or external brake whenever a load must be held.
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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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