Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-50S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø20mm bore and 160mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ20 mm
- Stroke160 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM8×1.25
- 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 MAJ20X160-50S
Double-acting and stroke-trimmable, the MAJ20X160-50S gives a 20 mm bore 157.0 N of push and 131.9 N of pull at 0.5 MPa, rising to 219.8 N at 0.7 MPa, with an external stop screw that cuts the extend stroke anywhere between 110 mm and the full 160 mm. The rolled stainless round barrel with a 20 um hard-chrome plated carbon-steel rod shrugs off mild corrosion, a real edge over painted-steel minis in damp workshops and outdoor frames.
At 0.5 MPa, plan for roughly 94 N of actual work rather than the full 157 N rating, which equates to lifting about 8 kg vertically with a 2:1 margin. A fixed anti-impact pad softens each stroke end - it decelerates only, it is not an adjustable cushion - and every unit ships with a built-in magnet ready for CMSG, DMSG or EMSG switches at no extra cost.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-50S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 300 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MAJ20X160-50S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 20 | Bore size in mm. |
| ×160 | 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 MAJ20X160-50S Is Used
Container stopper on bottling lines
Wet, rinsed-down conveyors punish painted minis; the stainless barrel and a 157 N push at 0.5 MPa halt PET bottles or cartons on demand, with rod position trackable by a CMSG switch.
Small-part lift in vibratory feed bowls
With a 2:1 margin the rod lifts about 8 kg vertically, enough to raise terminal blocks, gears or stamped clips into a pick position across the 160 mm stroke.
Light clamping on drilling jigs
Budget about 94 N of usable clamping force at 0.5 MPa - sufficient for soft-jaw holding of aluminium brackets during drilling or deburring.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ20X160-50S the Right Cylinder?
For the same 0.5 MPa supply, bore 16 delivers 100.5 N and bore 25 delivers 245.3 N, so pick down when the part weighs under 10 kg and up when 157 N feels marginal. The stop screw is a mechanical extend-end stop only - on air loss the rod still drifts, so do not treat it as a load-holding brake. FA flange or LB foot mount, and the standard magnet accepts CMSG, DMSG or EMSG switches without a special-order piston. Over a 160 mm stroke, guide side loads separately to protect the 8 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 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 MAJ20X160-50S FAQ
Push is 157.0 N and pull 131.9 N at 0.5 MPa; at 0.7 MPa push rises to 219.8 N, with a theoretical maximum of 32 kgf at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi) of air filtered to 40 um, from -20 to +70 C, cycling at 30-800 mm/s, with a 1/8" port and an M8x1.25 male thread on the 8 mm rod.
Yes for mild duty: the stainless-steel barrel plus 20 um hard-chrome plated rod resist light corrosion and rinsing far better than painted or plain aluminium minis. For heavy chemical washdown, confirm compatibility from the datasheet before fitting.
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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