Q: What is the origin of Volvo hydraulic excavators?

Volvo Construction Equipment is the construction division of the Swedish Volvo AB group. Its hydraulic excavators originated from the 1995 acquisition of Samsung Heavy Industries’ construction equipment division, which already manufactured excavators based on technology developed with Volvo. Volvo CE excavator production plants are mainly located in South Korea, China, and Poland. Volvo CE machines are independent of Volvo Trucks (road vehicles): their hydraulic components, including distributors, are not interchangeable between the two product lines.

Question 1

How does a hydraulic distributor work?

Accepted Answer

A hydraulic distributor receives high-pressure oil from the pump outlet and directs it to the actuators (cylinders, hydraulic motors) by moving internal spools. The position of the spool determines the direction of the oil flow and thus the direction of the actuator's movement. On Volvo hydraulic excavators, the main distributor combines several independent sections, each controlling a machine function (boom, arm, bucket, rotation, translation).

Question 2

What does the 4/3 symbol on a hydraulic distributor mean?

Accepted Answer

The 4/3 notation refers to a distributor with 4 ways and 3 positions. The 4 ways correspond to the distributor’s hydraulic connections: pump input (P), tank return (T), and the two outputs to the actuator (A and B). The 3 positions relate to the spool states: movement in one direction, neutral, movement in the opposite direction. On Volvo CE distributors, the central neutral position can be either free-flow or blocked, depending on the controlled function.

Question 3

What is the origin of Volvo hydraulic excavators?

Accepted Answer

Volvo Construction Equipment is the construction division of the Swedish Volvo AB group. Its hydraulic excavators originated from the 1995 acquisition of Samsung Heavy Industries’ construction equipment division, which already manufactured excavators based on technology developed with Volvo. Volvo CE excavator production plants are mainly located in South Korea, China, and Poland. Volvo CE machines are independent of Volvo Trucks (road vehicles): their hydraulic components, including distributors, are not interchangeable between the two product lines.

Question 4

What are the different types of hydraulic distributors?

Accepted Answer

Hydraulic distributors are mainly distinguished by their spool configuration (single-acting or double-acting), number of ways and positions (4/2, 4/3, 6/3, etc.), and control type (manual, electrohydraulic, proportional). On Volvo Construction Equipment machines, the main distributor is typically a sectional block with electrohydraulic control on recent models, or mechanically operated on generations prior to roughly 2005.

Used Hydraulic Distributors for Volvo Machinery - page 2

72 produits disponibles

Hydraulic distributor for VOLVO EC210B

Hydraulic distributor for VOLVO EC210B

Hydraulic distributor for VOLVO EC210C

Hydraulic distributor for VOLVO EC210C

Hydraulic distributor for VOLVO EC240

Hydraulic distributor for VOLVO EC240B

Hydraulic distributor for VOLVO EC240BNLC

Hydraulic distributor for VOLVO EC360BLC

Hydraulic distributor for VOLVO EC380EL

Hydraulic Distributor for VOLVO EC380ENL

Hydraulic distributor for VOLVO EC460

Hydraulic distributor for VOLVO EC460B

Hydraulic distributor for VOLVO ECR145EL

Hydraulic distributor for VOLVO ECR145EL

Hydraulic distributor for VOLVO ECR235DL

Hydraulic distributor for VOLVO EW140B

Hydraulic distributor for VOLVO EW140C

Hydraulic distributor for VOLVO EW160C

Hydraulic Distributor for VOLVO L120F

Hydraulic distributor for VOLVO L150C

Hydraulic distributor for VOLVO L150E

Hydraulic distributor for VOLVO L180E

Hydraulic distributor for VOLVO L180E

Hydraulic distributor for VOLVO L180G

Hydraulic distributor for VOLVO L180G

Hydraulic distributor for VOLVO L180G

Hydraulic distributor for VOLVO L180G

Hydraulic Distributor for VOLVO L180G

Hydraulic distributor for VOLVO L220E

Hydraulic distributor for VOLVO L220F

Hydraulic distributor for VOLVO L220G

Hydraulic distributor for VOLVO L45B

Hydraulic distributor for VOLVO L70F

Hydraulic Distributor for VOLVO L90G

Hydraulic valve for VOLVO L180G

Hydraulic valve for VOLVO L180G