Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X160-40S
The AirTAC MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X160-40S is a genuine double acting, double rod, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 160mm 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
- Stroke160 mm
- Port size1/4"
- Acting typeDouble acting, double rod, 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 MACJ50X160-40S
The MACJ50X160-40S pairs a 50 mm bore with a 160 mm stroke and a 40 mm adjustable window, so the extend stroke can be trimmed on site anywhere between 120 and 160 mm using the external stop screw. Air supply runs 0.15-1.0 MPa (22-145 psi) and speed spans 30-800 mm/s.
Its round body is a riveted stainless-steel barrel with aluminium-alloy covers and a hard-chrome plated 16 mm rod, so mild corrosion and washdown are far less of a worry than on painted-steel minis. The magnet is built in as standard, letting CMSG, DMSG or EMSG switches clip on without a special-order piston.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X160-40S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X160-40S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 160 mm |
| Acting type | Double acting, double rod, 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 | Force (both ways) |
|---|---|
| 0.5 MPa | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 kgf |
MAJ / MACJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X160-40S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×160 | 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 (double rod, 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 MACJ50X160-40S Is Used
Bottling line pusher
Feeds 50 kg trays of bottles across a changeover plate at up to 800 mm/s, with the 40 mm trim dialling the stop point to the lane guide.
Carton forming station
Squares flap-folded cartons before gluing; the variable cushion absorbs the stop shock when the machine runs near full cycle speed.
Fixture clamp on a drilling line
Holds aluminium housings against a hard stop between drilling and tapping, using about 589 N of dependable clamping effort at 0.5 MPa.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X160-40S the Right Cylinder?
Against the neighbouring sizes: a 40 mm bore MACJ pushes 628.3 N at 0.5 MPa while a 63 mm bore reaches 1557.9 N, so the 50 mm sits mid-pack for pushers and light presses needing around 1 kN. Remember the adjuster is a mechanical end stop for the extend stroke only - if air is lost the rod still drifts, so add a separate valve or lock where holding matters. Mount with FA flange or LB foot, add an I or Y rod knuckle if the tooling needs it, and keep side-load low over the 160 mm travel to protect the chrome 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 MACJ50X160-40S FAQ
The theoretical maximum at 1.0 MPa is 200.1 kgf. It is double-acting with an adjustable stroke, operates on 0.15-1.0 MPa (22-145 psi) air and moves at 30-800 mm/s. Ports are 1/4" on this bore.
The stop screw of the -40 variant shortens the extend stroke within a 40 mm window (120-160 mm) without changing the cylinder itself. It is a mechanical end stop, not a mid-stroke lock, so on air loss the piston still drifts. Variable cushioning at both ends stays active across the whole trimmed range.
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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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