Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X350-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X350-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 350mm 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
- Stroke350 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 MACJ50X350-30S
The MACJ50X350-30S belongs to AirTAC's round-body MA line: a double-acting mini cylinder with an adjustable extend stroke and a variable air cushion at each end. A stop screw trims the extend stroke anywhere inside the 30 mm window, so a single cylinder can be tuned on site for several part heights. At 0.5 MPa the 50 mm bore delivers 981 N on the push stroke and 881 N on the return.
The riveted stainless barrel with a hard-chrome plated rod shrugs off the moisture, washdown and outdoor exposure that quickly ruin painted minis. The magnet is built in as standard, so CMSG, DMSG or EMSG switches drop straight on without a special piston. For real-world sizing, plan the workload around 589 N at 0.5 MPa - about 50 kg lifted vertically once you hold a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X350-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X350-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 350 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 MACJ50X350-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×350 | 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 MACJ50X350-30S Is Used
Weld fixture clamping
Clamps automotive brackets over a 350 mm reach, with the 30 mm window absorbing bracket height variation between models.
Carton push-off station
Knocks full cartons off a sorter conveyor; 981 N at 0.5 MPa clears heavy multi-pack cases without stalling.
Pallet stop gate
Raises and lowers a stop blade at the end of a roller line, with end cushions damping each pallet impact.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X350-30S the Right Cylinder?
A 40 mm MACJ bore gives 628 N at 0.5 MPa if this unit looks oversized, while a 63 mm bore steps up to 1558 N when loads grow. Note the adjuster is a mechanical end stop for the extend position, not a mid-stroke lock - on air loss the rod can still drift, so do not count on it to hold a load. Choose FA flange or LB foot mounting; I and Y rod knuckles are also available, and the 1/4" port keeps supply generous at 30-800 mm/s.
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 MACJ50X350-30S FAQ
At 0.5 MPa it pushes 981.3 N and pulls 880.8 N; at 0.7 MPa push rises to 1373.8 N and pull to 1233.1 N. The theoretical ceiling at 1.0 MPa is 200.1 kgf. Operating range is 0.15-1.0 MPa (22-145 psi) and speed spans 30-800 mm/s.
The high-precision stainless barrel, hard-chrome plated rod and aluminium covers form a riveted, sealed package that tolerates washdown, humidity and outdoor duty far better than painted-steel minis. The variable air cushion at both ends can be opened up to soften heavier loads at speed.
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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