Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø40mm bore and 175mm stroke, 1/8" 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.
- BoreØ40 mm
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM12×1.25
- 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 MACJ40X175-50S
Pushing 628.3 N and pulling 527.8 N at 0.5 MPa, the MACJ40X175-50S puts bore 40 muscle behind a 175 mm stroke. The external stop screw lets maintenance trim the extend stroke anywhere inside the 50 mm window without swapping cylinders, and a variable air cushion at both ends lets you run up to 800 mm/s without slamming the covers. Supply clean 40 um filtered air at 0.15-1.0 MPa (22-145 psi).
Its body is a riveted stainless round barrel with a hard-chrome plated 16 mm rod, so it shrugs off washdown and humid air that dulls painted minis. The magnet comes standard, letting CMSG, DMSG or EMSG switches clip on for end-of-stroke signals. For sizing, keep real work near 377 N - about 60 percent of the 0.5 MPa push - which alone lifts a 38 kg load vertically, or 32 kg once a 2:1 margin is applied.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MACJ40X175-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×175 | 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 MACJ40X175-50S Is Used
Carton kick-off on a pick station
Sweeps small parcels off a conveyor into a turnover bin; 628 N at 0.5 MPa clears loaded cartons at speed with the 50 mm window set per lane.
Washdown gate actuator
Opens and closes a divert gate on a dairy rinse line, where the stainless barrel and hard-chrome rod outlast painted mini cylinders.
Weld-fixture clamp slide
Locks a sliding clamp over 175 mm of travel on a tube-welding jig; the end cushions keep the clamp from battering its stop at 800 mm/s.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X175-50S the Right Cylinder?
Compare both neighbours before locking the bore: a 32 mm MACJ makes 402.2 N at 0.5 MPa for lighter work, while a 50 mm bore jumps to 981.3 N when loads grow. Note that the trim screw only shortens the extend stroke and acts as a mechanical end stop - it never locks the load, and the rod drifts if air is lost. FA flange and LB foot plates, plus I and Y rod knuckles, cover most frames, the rod thread is M12x1.25 male, and air ports are 1/8". At 175 mm of extension, guide any overhanging tooling externally to protect the 16 mm rod.
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 MACJ40X175-50S FAQ
At 0.5 MPa it pushes 628.3 N and pulls 527.8 N; at 0.7 MPa those rise to 879.6 N push and 738.9 N pull, and the theoretical ceiling is 128.1 kgf at 1.0 MPa. Work the adjuster within the 50 mm window and stay between 0.15-1.0 MPa (22-145 psi).
No - the magnet is built into every MA piston as standard, so CMSG, DMSG and EMSG switches mount directly on the barrel and read end-of-stroke without a special order or waiting for a modified piston.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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