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–aPM002 ɸ5ɸ311seirosseccA–aPM003ill3N5 srednspmuPsevaVyC■M16 female thread machine drawing■UP-31B/UP-41B hydraulic circuit diagram ■UP-31 hydraulic circuit diagram Ultrahigh-Pressure Manual Pumps (UP-31/UP-41 Series)300 MPa/400 MPaPressure GaugesBlank:With pressure gauge (ASBG100-400M-U)*UP-31 onlyB:Without pressure gauge*The pressure in parentheses is the preset pressure for the UP-41B. ● Can boost the pressure up to 300/400 MPa (ultrahigh-pressure). ● Due to the two-stage speed control, the pressure automatically switches between high and low speed modes for better work efficiency. ● Equipped with a safety valve like the reliable 70 MPa and 200 MPa series. ● Calibration and traceability certificates cannot be issued for the ASBG100-400M-U (mounted on the UP-31) because of its special　internal structure.Maximum operating pressureMPaModelHigh pressureLow pressureAt high pressureAt low pressureUP-31UP-31B300UP-41B400■UP-31● Can be mounted in a narrow place thanks to the universal joint.● The ASBG100-400M-U is a silicone-containing gauge that is resistant to surge pressure and a sudden pressure fluctuation.● Calibration and traceability certificates cannot be issued for the ASBG100-400M-U because of its special internal structure.　If the certificates are required, choose the AS150-400M-U or AS150-500M-U.● The AS150-400M-U and AS150-500M-U are make-to-order products.ModelASBG100-400M-UAS150-400M-UAS150-500M-UTank oil volumecm3Effective oil volumecm321001800Thread sizeCertificatesNot availableG1/2 universal joint Available Available 31:For 300 MPa41:For 400 MPa300 MPa– Series No.Ultrahigh-pressure manual pump*The accuracy of the ASBG100-400M-U is a reference value.Pressure gaugeLever loadApprox. weightkg19.356418.657660°M16×1.5Compatible pumpApprox. weightkg0.8UP-311.1UP-411.1Discharge volume cm3/stroke1.00.8Maximum operating pressureMPaMaximum scaleMPa3001040010Model code structure■ Specifications■ Specifications■UP-31BOutlet port Hydraulic oil14.4M16 x 1.5ISO VG32■UP-31B/UP-41BAccuracyF.S.Equivalent to ±4.0 %±1.6 %No.79E since2025217UP-31B