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Bosch Rexroth | SYDZ0001-1X300V045M

SYDZ0001-1X/300V045M

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The SYDZ0001-1X/300V045M control unit belongs to the SYD Hydraulic Control Systems series and is manufactured by Bosch Rexroth. It directs pump flow and safeguards downstream actuators in hydraulic automation circuits built around the A10VSO NS 45 pump. An integrated check valve blocks reverse flow during standby, and the passage reaches full opening when inlet pressure climbs to 30 bar. A preload function acts up to 20 bar to damp pressure spikes before the main channel opens. The assembly tolerates continuous service at 350 bar, while a fixed internal limiter caps system pressure at 300 bar to protect hoses and cylinders. Because the pressure relief is not adjustable, technicians cannot alter this setting, ensuring repeatable safety performance. All dynamic seals are compatible with mineral oil types HL and HLP according to DIN 51524, allowing deployment in common industrial power units without fluid change.

The housing is drilled for four M10 × 120 screws specified by ISO 4762, and each screw must be tightened to 50 N·m to secure the block against vibration. Connection geometry follows DIN ISO 6162-1 so that the SAE ports align with standard manifold plates; the primary pressure port P is threaded G 1/8, the auxiliary Mp1 port is G 1/4, and the high-flow P1 port is G 3/4. A dedicated supply port Pp uses a 1-inch SAE interface for direct pump discharge, while the return line is routed through a T port threaded G 3/8. These standardized threads simplify hose selection and minimize installation errors across mixed equipment. Combined with the defined pressure limits, the port layout enables compact routing of supply, sensing, and tank lines within automated presses, test rigs, or servo-controlled actuators.

Technical Specifications

Check Valve
Integrated

Fully Open Pressure
30 bar

Maximum Operating Pressure
350 bar

Mounting Screws
4d7M10d7120 (ISO 4762)

Mp1 Port Thread
G1/4

P Port Thread
G1/8

P1 Port Thread
G3/4

Pp Port Size
SAE 1 in

Preload Function Range
20 bar

Pressure Limitation Setting
300 bar

Pressure Relief Adjustability
Not Adjustable

Pump Compatibility
A10VSO NS 45

Sae Port Standard
DIN ISO 6162-1

Screw Tightening Torque
50 Nb7m

Seal Compatibility
Mineral Oil (HL, HLP) DIN 51524

T Port Thread
G3/8

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