Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm 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.
- BoreØ50 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 MACJ50X75-30S
Trim the extend stroke anywhere across a 30 mm window and you still get full 50 mm-bore muscle: 981 N of push at 0.5 MPa, 1374 N at 0.7 MPa. The MACJ50X75-30S is double-acting with a variable air cushion at each end, so end-of-stroke shock stays controlled even at the top of the 30-800 mm/s speed band. Its rolled-in stainless barrel and 20 um hard-chrome rod cope with damp or lightly washed-down corners far better than painted mini cylinders.
In practical terms the bore is good for around 589 N of real work at 0.5 MPa, enough to raise about 50 kg vertically once a 2:1 margin is applied. Magnetic position sensing comes standard: clip a CMSG, DMSG or EMSG switch straight onto the barrel. Fluid is 40 um filtered air, and the rod is 16 mm male M14x1.5.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MACJ50X75-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×75 | 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 MACJ50X75-30S Is Used
Carton divert pusher
Pushes cartons off a sorter lane; the 30 mm window lets the team re-tune the stop point after every lane change.
Sample vial capping press
Seats caps onto 50 ml sample vials in a lab bottling rig, 981 N at 0.5 MPa giving a firm, repeatable seat.
Process valve lever trip
Trips a process valve lever through a short link, the variable cushion removing chatter at end of travel.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-30S the Right Cylinder?
Size against neighbours: bore 40 delivers 628 N at 0.5 MPa and bore 63 delivers 1558 N, so 981 N at this 50 mm bore is the middle step. The 30 mm adjust window suits machines where the exact stop point is tuned during commissioning. One caution: the adjuster is a mechanical stop, not a mid-stroke lock - remove air and the piston can still drift under load. Choose FA or LB mounting, add I or Y knuckles if the tooling needs a swivel, and the 16 mm rod handles the side loads of this short stroke comfortably.
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 MACJ50X75-30S FAQ
Push is 981 N and pull 881 N at 0.5 MPa; at 0.7 MPa expect 1374 N and 1233 N respectively. Maximum theoretical force reaches 200 kgf at 1.0 MPa, within a 0.15-1.0 MPa (22-145 psi) working band and 1.5 MPa (215 psi) proof pressure.
Yes. The magnet is standard on every MA-series unit, so CMSG, DMSG or EMSG reed and hall switches clamp directly to the stainless barrel for end-of-stroke signalling - no special-order piston and no extra hardware is needed.
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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