Question 1

What is a hydraulic manifold block?

Accepted Answer

It is a precision CNC machined metal block with internal oil passages, used to install cartridge valves and build integrated hydraulic circuits.

Question 2

What materials can you supply for manifold blocks?

Accepted Answer

Standard materials are 6061 aluminum alloy and 45# steel. Stainless steel is available for special corrosion-resistant requirements.

Question 3

Can you customize the manifold block according to my drawings?

Accepted Answer

Yes. We support custom design and machining based on your drawings, samples or hydraulic circuit requirements.

Question 4

What port thread standards do you support?

Accepted Answer

BSPP, BSPT, NPT, SAE and metric threads are all available.

Question 5

What is the maximum working pressure?

Accepted Answer

Aluminum blocks up to 210 bar, steel blocks up to 350 bar or higher upon request.

Question 6

What is a cartridge valve sleeve?

Accepted Answer

It is a precision ground metal sleeve installed inside the manifold cavity to guide valve movement and ensure sealing.

Question 7

What materials are used for cartridge valve sleeves?

Accepted Answer

Typically alloy steel with surface heat treatment, or stainless steel for corrosive media.

Question 8

What tolerances can you achieve on the sleeve?

Accepted Answer

Inner diameter grinding tolerance can reach with surface

Question 9

Do you provide pressure testing before shipment?

Accepted Answer

Yes. Every manifold block undergoes 100% pressure leakage test and dimensional inspection.

Question 10

What surface treatments are available?

Accepted Answer

Anodizing, black oxide, zinc plating, nickel plating and passivation are available.

Question 11

Can you supply the manifold block and cartridge valve sleeve as a matched set?

Accepted Answer

Yes. We supply matched assemblies with guaranteed fit and interchangeability.

Question 12

What is the typical lead time for custom orders?

Accepted Answer

Standard custom blocks 15 working days. Complex multi-valve manifolds:30 working days.

Question 13

What is the minimum order quantity (MOQ)?

Accepted Answer

MOQ is flexible. Prototypes and small-batch orders are accepted.

Question 14

Do you offer OEM / ODM services?

Accepted Answer

Yes. We provide OEM machining and ODM design support based on your brand and technical requirements.

Question 15

How do you ensure internal passage cleanliness?

Accepted Answer

Deep hole drilling, CNC deburring, ultrasonic cleaning and high-pressure air flushing are applied.

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