
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X160-75 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 75mm for a usable window of 85–160mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ20X160-75 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and screw-tunable air cushions at both ends. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa. The rear stopper allows you to trim up to 75 mm of travel, creating a usable operating window of 85 to 160 mm for exact endpoint positioning.
This 20 mm bore unit uses a G1/8 port and an Ø8 mm hard-chrome plated carbon steel rod. Because this specific SKU lacks the -S magnet code, it cannot accept CMSG, DMSG, or EMSG position sensors. The riveted rolling-packed barrel and grease-retaining piston seal ensure consistent friction, while the adjustable cushioning absorbs kinetic energy at the stroke ends to prevent end-cover damage during faster cycling.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X160-75 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 160 mm |
| Adjustable window | 85–160 mm (trim 75 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. |
| -75 | 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).
Uses the 85-160 mm adjustable stroke window to dial in the exact cutting depth for router spindles on printed circuit board panels, relying on the 157 N thrust to hold the tool plate.
Tunes the rear stopper to pinch manifold valves precisely without over-traveling, while the adjustable air cushion prevents shock to the delicate manifold block at the end of the 160 mm extension.
Drives a tamp pad down to apply labels at varying box heights, using the dual end cushions to softly decelerate the pad and prevent label skewing during high-speed packaging runs.
Choose this 20 mm bore when you need 157 N of thrust at 0.5 MPa with fine endpoint tuning. If your application requires less force, the smaller 12 mm bore classes offer lower output; if you need substantially more power, stepping up to a 25 mm bore provides 245 N of push force at 0.5 MPa. Compared to the MBLJ series which relies on a fixed rubber bumper, this MBLCJ model utilizes adjustable air cushions to finely tune end-of-stroke deceleration for heavier loads.
The rear adjuster acts strictly as a mechanical travel stop and does not lock or hold the load in place, meaning external locking mechanisms are required for fail-safe positioning. Mounting is limited to Basic, FA flange, or LB foot styles, as rear SDB pivots and back-cover options are not available. To replace this unit, match the 20 mm bore, 160 mm stroke, 75 mm adjust code, G1/8 PT thread, and confirm no magnet is required. With a 160 mm stroke on an Ø8 mm rod, adding an external guide rail is recommended to prevent rod bending under lateral loads.
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 the 1.0 MPa operating limit, with a proof pressure of 1.5 MPa.
This specific SKU does not have a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG sensor switches. Additionally, the 75 mm rear adjuster is strictly a travel stop that sets the 85-160 mm stroke window; it does not lock or hold the load, and the air cushions only decelerate the piston without braking.
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