Core parameters (Δp = 35 bar)

Rated flow rate: 150 L/min (40 gpm)

Working pressure: 350 bar (P/A/B/X ports), T port ≤ 70 bar

Frequency response: −3 dB ≈ 80 Hz (±100% signal)

Step response: 18 ms (0→100% stroke)

Hysteresis: <4% (mechanical feedback MFB)

Linearity: <7.5%

Control signal: ±15 mA (standard coil, 20 Ω)

Feedback: Mechanical feedback (MFB, no external amplifier required)

Sealing: NBR (−29℃～+135℃), optional FKM

Protection: IP65, shock resistance 30 g (three axes)

Weight: Approximately 5.5 kg

Comparison of the three major models of the 72 series (Size 06, MFB)

D072-017: 95 L/min, 350 bar, 11 ms → Standard large flow rate

D072-022A: 150 L/min, 350 bar, 18 ms → Medium-large main unit

D072-1203: 225 L/min, 350 bar, 33 ms → Ultra-large flow flagship ** Structural features

Two-stage pilot + double nozzle baffle: strong anti-pollution performance, high reliability, long service life

Dry torque motor: no need for oil lubrication, suitable for harsh conditions, simple maintenance

Mechanical feedback (MFB): direct current drive, no built-in amplifier required, easy debugging

On-site replaceable pilot filter: reduces maintenance costs, reduces downtime

ISO 10372 Size 06 installation surface: highly versatile, suitable for heavy-duty systems

Typical applications

Metallurgy: rolling mill AGC, lowering cylinder, winding machine, 150 L/min high-flow high-precision control

Forging / casting: large press slider, mold locking, injection, high-pressure high-flow servo

Test equipment: material testing machine, fatigue test bench, high dynamic flow control

Shipbuilding / heavy industry: large rudder motor, anchor motor, heavy-duty actuator, highly reliable MFB scenarios

Difference from D072-017

Flow: 150 L/min (022A) vs 95 L/min (017)

Step response: 18 ms vs 11 ms (017 faster)

Application: 022A is suitable for larger-tonnage presses / rolling mills, 017 is the standard main model