
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X160-20S is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 160mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 140–160mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ20X160-20S is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 157 N of push force at 0.5 MPa. The 20 mm rear trimmer creates a usable travel window of 140 to 160 mm, letting you dial in the exact end position for your fixture. A built-in magnet enables position feedback.
Unlike the standard MBLJ bumper version, the screw-tunable cushion valves on this unit decelerate the rod near the stroke ends to absorb impact energy. This protects the end covers during faster cycling. The Ø8 mm hard-chrome plated carbon steel rod is riveted into a grease-retaining piston seal. Remember the rear adjuster sets the travel stop; it does not lock the load in place.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X160-20S |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 160 mm |
| Adjustable window | 140–160 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×160 | Nominal stroke length in mm. |
| -20 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Sets a 140-160 mm travel limit for a depaneling router head, using the adjustable cushion to prevent snapping the fragile board edge at the end of the cut.
Trims the stroke window for a pneumatic glue dispenser, ensuring the needle retracts fully without slamming the valve body, protected by the -S magnet feedback.
Actuates a lightweight paper web guide roller with 132 N of pull force, relying on the tunable air cushion to decelerate smoothly without tearing the substrate.
Choose this 20 mm bore when you need 157 N of push force at 0.5 MPa with precise end-position tuning. If your payload is lighter, stepping down is not an option as 20 mm is the smallest available size. If you need more thrust, the 25 mm bore provides 245 N. For this 160 mm stroke, the small Ø8 mm rod is susceptible to side-loading, so an external guide rail is recommended to prevent binding.
This SKU includes a built-in magnet for CMSG reed or DMSG/EMSG electronic sensors. It uses a G1/8 port with PT threads and Basic/FA/LB mounting only (no SDB or back-cover options). To replace, match the 20 mm bore, 160 mm stroke, 20 mm adjust code, and the -S magnet. The rear stopper and cushion valves regulate travel and deceleration, but neither will hold the cylinder position without live air pressure.
Quick checklist
At 0.5 MPa, this 20 mm bore cylinder provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force increases to 220 N. The maximum theoretical force is 32 kgf at 1.0 MPa.
The 20 mm rear adjuster is a mechanical travel stop that sets your usable stroke window from 140 to 160 mm. The adjustable air cushion is a separate needle valve that regulates exhaust flow to decelerate the piston near the end caps. Neither component locks the load in place.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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