Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S is a genuine double acting, adjustable stroke 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.
- BoreØ40 mm
- Stroke175 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM12×1.25
- CushionFixed anti-impact bumper pads
- 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S
Few minis offer a 50 mm tuning span, but the MAJ40X175-50S does: the stop screw pulls the extend stroke down to 125 mm from a 175 mm build, all without re-ordering a custom length. The 40 mm piston generates 628 N forward and 528 N return at 0.5 MPa, about 64 kgf at the rod, and 879 N forward at 0.7 MPa. Pressure envelope 0.15-1.0 MPa (22-145 psi); speed 30-800 mm/s.
Build quality comes from the riveted stainless round barrel, aluminium covers and a grease-retaining heterogeneous piston seal that keeps lubrication where it matters across long runs. Treat 377 N as the practical duty ceiling at 0.5 MPa and the cylinder will live a long service life even on fast 800 mm/s cycles.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Fixed anti-impact bumper pads |
| 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S Is Used
Tray erecting on a bakery line
Pushing folded trays into a forming nest; 628 N seats the tray firmly and the 50 mm window absorbs different tray depths.
Pallet corner locator
Locating pallet corners before a stretch wrapper cycle, with the extend stop retuned whenever pallet sizes change.
Carton stack squaring
Squaring stacked cartons on a warehouse outfeed, using a stainless body that tolerates damp dockside air without rusting.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S the Right Cylinder?
Compare force classes: 32 mm gives 402 N at 0.5 MPa while this 40 mm gives 628 N, so choose on real duty; above roughly 240 N of working load the 40 mm earns its keep. The -50 stop is a hard extend limit, not a position lock, and drift should be expected if air is lost mid-cycle. FA flange or LB foot mounting; I and Y knuckles for the rod end. The standard-fitted magnet accepts CMSG / DMSG / EMSG switches out of the box.
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 Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ40X175-50S FAQ
At 0.5 MPa: 628.3 N push, 527.8 N pull. At 0.7 MPa: 879.6 N push, 738.9 N pull. Theoretical maximum 128.1 kgf at 1.0 MPa. Bore 40 mm, rod 16 mm, port 1/8", rod thread M12x1.25.
The two-way heterogeneous seal doubles as a grease store, so friction stays low between maintenance windows. Paired with the hard-chrome plated rod and fixed anti-impact bumper pads, the cylinder tolerates high-cycle duty without losing sealing performance.
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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