Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-75SH
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-75SH 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 MACJ50X75-75SH
Trim exactly where the job stops. This MACJ bore-50 unit pushes 981 N and pulls 881 N at 0.5 MPa, driven by air on both sides of the piston. Its stainless-steel barrel is rolled onto aluminium covers in a riveted round body, a construction that outlasts painted-steel minis in humid or outdoor plant corners.
Inside the 75 mm ordered window you dial the extend stroke shorter on site with the stop screw, and a variable air cushion at each end lets you raise cycle speed without end-of-stroke bang. Halve the 0.5 MPa push rating for a 2:1 margin and the bore lifts about 50 kg vertically - enough headroom for a loaded tray or a small die section.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-75SH Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-75SH |
|---|---|
| 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 MACJ50X75-75SH
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×75 | Stroke length in mm. |
| -75 | 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 MACJ50X75-75SH Is Used
Tray forming gate
Stops and releases PET trays between a former and a heat sealer; the wide 75 mm setting range covers tray pitches from 150 mm up to 225 mm.
Sample rack elevator
Raises lab sample racks on a vertical lift; with a 2:1 margin the bore lifts about 50 kg, so a loaded 40 kg rack travels with clear headroom.
Hot-melt head positioner
Drops a glue head onto corrugated blanks at a case line; the dual variable cushions let operators speed the head up without hammering the covers.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-75SH the Right Cylinder?
A 40 mm bore (628 N push at 0.5 MPa) covers lighter gates; a 63 mm bore (1558 N) covers heavy diverters, so pick 50 mm when the load lands in between. The adjuster is an end stop only - bleed the supply and the piston will still creep under load, so it never replaces a locking valve. Frames take FA flange or LB foot mounts with I / Y knuckles on the rod, and every unit ships with the magnet already fitted for CMSG / DMSG / ESG switches; port threading comes in PT / G / NPT.
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 MACJ50X75-75SH FAQ
Push 981 N and pull 881 N at 0.5 MPa; push 1374 N and pull 1233 N at 0.7 MPa; theoretical maximum 200 kgf at 1.0 MPa. Air supply 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, extend stroke trimmed anywhere inside the 75 mm window.
Yes - a variable air cushion at each end lets you dial out end-of-stroke shock independently, so heavier loads or faster cycles land softly instead of pounding the aluminium covers.
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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