EW stands for Exchange
EG stands for Direct Current
The meaning of each letter of Rexroth solenoid valve:
For example, 4WE6E6X/EG24N9K4
4→ 4-way (there are also 3-way) 4-way ports
6→ is 6
E→ function symbol (also C, D, E, EA, EB, etc.)
6X→ 60 to 69 series The mounting and port dimensions remain unchanged
After the slash (/): Unsigned→ spring return
O→ Springless return
OF → no spring return belt positioning effect
E→ High Power SolenoidsWet solenoids with detachable coils
G→ DC voltage (W stands for AC, such as W230 stands for AC 230V voltage, 50/60Hz, G205 stands for DC voltage, 205V and other voltages and frequencies)
24→24V voltage
N9 → stands for implicit manual emergency operation (standard) (only N means with manual emergency operation, no manual emergency operation and no code)
K4 → electrical wiring form (individually wiring, with plug alignment pin DIN43 650-AM2, without conductor socket) (DL refers to centralized wiring with a lead on the cover and a light display; DKL has a centralized plug on the lid and a light display (without right-angle socket)
Behind K4: No logo→ no plug-in throttle
B08→ throttle fl 0.8mm
B10→ throttle fl 1.0mm
B12→ throttle fl 1.2mm
Rear of B08: No logo→ nitrile rubber seal
V→Fo rubber seals (pay attention to the adaptability of the hydraulic oil used and the seals)
V back: no marking→ no dowel pin hole
/60→ with dowel pin holes
The meaning of each letter of Rexroth piston pump:
Example: A10VSO18DFR1/31R-PPA12N00
A10VS→ swash plate variable pump, this series of industrial drive, nominal pressure 28MPa, zui high pressure 35MPa;
o → operation mode, this series is used in open circuit systems;
18 → displacement specifications: This model is 18m3 (there are also 10, 28, 45, 71, 100, 140 and other common specifications and displacement)
DFR1 → control mechanism, (DG stands for two-position control direct drive; DR(G) Table; remote control of pressure control; DFR(1) Pressure/Flow Control ; With 1 finger in the X oil circuit without small holes; DFLR Pressure/Flow/Power Control; FHD flow control, related to pilot pressure with pressure control; FE1** flow electronic control; DFE1** Pressure/Flow Electronic Control; ED electro-hydraulic pressure control);
31 → product range
R → direction of rotation (R clockwise, L counterclockwise)
P → seals (P refers to NBR with FKM shaft seal (nitrile rubber according to DIN ISO 1629), V refers to FKM (Buddha rubber, according to DIN ISO 1629))
P → shaft end (P refers to straight shaft with key DIN 6885, S refers to splined shaft SAE, R refers to splined shaft SAE (higher thru-shaft drive torque));
A → mounting flange hole (A refers to ISO 2 hole, B refers to ISO 4 hole);
12. → working port connection, {pressure port B oil suction port S} in the opposite direction, SAE port metric fixing screw;
N00 → thru-shaft, (N00 without thru-shaft drive; There are through-shaft drives, with axial pumps, gear pumps, and radial piston pumps, KB2, K51, KB3, K01, etc.)
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The pressure regulation step of the Rexroth pressure reducing valve
1. Close the gate valve before the pressure reducing valve, open the gate valve after the pressure reducing valve, and create a downstream low-pressure environment;
2. Rotate the adjusting screw counterclockwise to the upper position (relative to the low outlet pressure), and then close the gate valve after the pressure reducing valve;
3. Slowly open the gate valve in front of the pressure reducing valve ...
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Rexroth launches ctrlX OS operating system for third-party hardware
Automation is even more open and free
Available for all tiers, from on-site to cloud
The software stack is strengthened and the network security is extremely high
Connect with ctrlX Store and ctrlX Device Portal
The Linux operating system ctrlX OS is now available for the third ...
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What do I need to pay attention to when assembling a Rexroth gear oil pump?
(1) Remove the burrs from each part. The sharp edge of the gear is poured with natural oil stone, but not into a fillet. The parts after flat grinding should be demagnetized, and all parts should be carefully cleaned with kerosene before they can be put into assembly.
(2) Measure and ensure the axial clearance during assembly: Rexroth gear oil pump axial ...
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Rexroth variable piston pump displacement control mode
1. Guiding ideology:
1. The pressure depends on the load oil pump, and the output pressure is inversely proportional to the flow rate. In the state of electronic control, when the external load increases, the system pressure increases, when the system pressure increases, the pressure of the front pump oil flow and the rear pump oil flow into the rear pump increases, and the computer detects the ...
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Rexroth builds a new plant in Querétaro, Mexico
Bosch Rexroth, a leading global supplier of drive and control technology, is building a new plant in Querétaro, Mexico, and will further strengthen its presence in North America. Bosch Rexroth has been successfully operating in Mexico for 40 years. From the summer of 2023, the walking machines of Querétaro ...
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Rexroth hydraulic pump - piston pump maintenance precautions
1. Check whether the piston pump is damaged and corroded, and replace it if so.
2. Check the fit of the plunger pair. Insert the end of the plunger into the plunger sleeve, tilt it about 60°, and if the plunger can slide slowly under its own action, it will fit well.
3. Check the tightness of the plunger pair. Use...
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Rexroth hydraulic pumps - precautions for the use of hydraulic pumps
1. When the hydraulic pump is started, it should be jogged several times, and after the oil flow direction and sound are normal, it should run under low pressure for 5-10min, and then put into normal operation. Before the piston pump is started, the pump must be filled with clean working oil through the oil drain port on the casing.
2. The viscosity of the oil is affected by the temperature ...
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Introduction to the characteristics of Rexroth relief valves
1. Because the action area of the poppet valve is very small, even if the pressure is very high, the spring rate is still not large, and the pressure regulation is light;
2. Because the spring of the main valve is very soft, the excitation fluctuation is small when the overflow volume changes. Good static characteristics;
3. It can adapt to the requirements of different pressure regulation ranges;
4. The main spool adopts ...
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Rexroth: Intelligent linear robots for productivity
The easy-to-set up, highly integrated mechatronic subsystem provides a more efficient engineering handling solution. With the new Cartesian multi-axis system, Bosch Rexroth linear drive technology offers you a valuable competitive advantage.
The handling robot, which consists of linear axes, flows through the entire value ...
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Rexroth Vane Pump PV7-1X/10-20RE01MC0-10 Debugging Precautions
Debugging considerations
exhaust
All PV7 vane pumps are self-priming.
Prior to commissioning, the pump must be emptied to prevent damage to the internal components.
When commissioning, it is advisable to fill the housing through a leak port. Pay attention to the filter accuracy class! This will improve the operation ...
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A brief introduction to Rexroth hydraulic motors
A Rexroth hydraulic motor is an actuator of a hydraulic system that converts the liquid pressure energy provided by a hydraulic pump into the mechanical energy (torque and speed) of its output shaft.
Hydraulic motors, also known as oil motors, are mainly used in injection molding machinery, ships, hoists, construction machinery, construction machinery, etc.
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Rexroth expands linear robots to help factory automation
The expanded Bosch Rexroth Cartesian coordinate system subsystem opens up new areas of application
Predefined linear robots are suitable for a wide range of work areas and load ranges
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Optional pre-installed software for faster commissioning and programming ...
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Bosch Rexroth: a dual powerhouse in the field of copy cutting
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The working principle of the Rexroth vane pump PV7 series
The working principle of Rexroth vane pump PV7 series: Rexroth vane pump PV7 series is a pump in which the blades in the rotor groove are in contact with the pump casing (stator ring) to press the suction liquid from the oil inlet side to the oil discharge side. Because there are two kinds of vane pumps in history, according to the different types of pumps, a) specifically refers to the positive displacement pump ...
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Rexroth's magnetic levitation conveying technology breaks through the bottleneck of production efficiency
● Top performance, flexible and easy to use
● From components, modules to systems, zero threshold matching on demand
● More value-added services, users have no worries
Worry-free, flexible and easy to use (Image source: Bosch Rexroth China)
"Production efficiency" is an eternal topic in the manufacturing industry ...
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Rexroth Hydraulic Pumps - Classification of Piston Pumps and Their Detailed Description
1. Classification of piston pumps
Piston pumps are generally divided into single piston pumps, horizontal piston pumps, axial piston pumps and radial piston pumps
1. Single piston pump
It is mainly composed of an eccentric wheel, a plunger, a spring, a cylinder block and two check valves. A closed volume is formed between the plunger and the cylinder bore. Slanting...
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Rexroth A10VO series variable piston pump structure description
A10VO series variable piston pump is one of Rexroth variable piston pumps, A10VO series is Rexroth medium pressure series swash plate axial piston pump, nominal pressure 280bar, used in open hydraulic circuits, the pump is very widely used, is used in various fields, including but not limited to...
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Rexroth Piston Pump FAQs
Rexroth piston pump failure manifests itself as follows.
The causes and elimination methods of excessive working noise of piston pumps.
There is air in the oil pump. This failure usually occurs when a new pump is installed. When opening a new pump, oil should be added to the pump first to lubricate the pump's bearings, plungers, and cylinders.
...
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How to use Rexroth balance valves
1. The flow direction of the medium should be consistent with the direction of the arrow of the valve body;
2. The differential pressure balance valve should be installed on the return pipe, the valve is connected to the guide pipe, and the other end of the pressure guide pipe is connected with the water supply pipe, and it is recommended to install a 1/2" ball valve at the water supply end of the pressure guide pipe in order to start the function of eliminating blockage;
3、 ...
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4 ways to predict maintenance failures in advance of Rexroth piston pumps
1. Conduct regular testing and diagnosis of Rexroth piston pumps
According to the listening and collecting signals, the western line diagram of the online working performance of the Tule Pillar Jiquan was made, and the evaluation report was made. Based on the results of home monitoring, it is decided whether to repair the Rexroth plunger atmosphere. In this way, the optimal dimension of the Piston Pump ...
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