CNC Deep Hole Internal Grinder

CNC Deep Hole Internal Grinder
Product Details

The deep hole internal grinder is suitable for grinding the inner surface of hardened deep hole sleeve. The diameter of grinding inner hole is 150 ~ 400mm, and the maximum grinding depth is 1800mm. The longitudinal movement of the worktable of the deep hole internal grinder can be continuously driven by hydraulic pressure or by hand wheel. The transverse feed of the grinding wheel rack is realized by hand. When the workpiece is clamped, one end is clamped in the three jaw automatic centering chuck or the four jaw chuck, the other end is supported on the closed central frame, and the taper of the grinded hole is eliminated by the lateral fine adjustment of the center frame. The grinding wheel, the workpiece, the oil pump and the cooling pump are separately driven by a single motor.

Main features of MS-3 CNC deep hole internal grinder

1.CNC deep hole internal grinder is Semi automatic CNC deep hole grinding machine, X axis feeding is driven by servo motor and ball screw, the reciprocating motion of Z axis (working table)adopts hydraulic drive, it has the functions of automatic feeding, automatic rough grinding, fine grinding, automatic cutter return, automatic grinding wheel dressing, automatic compensation etc.. it can grind the round holes, inner taper hole of the workpiece. The grinding diameter range is 50-500 mm and the maximum depth can reach 1000 mm.

2.The internal grinder bed is made of wear resistant cast iron. It has good thermal stability and strong rigidity.

3.The internal grinder adopts the working mode of the working table reciprocating, grinding rack feeding. The grinding frame is composed of a base, a slide plate and a die seat.

4.The internal grinder adopts the programmable control system of servo motor for automatic grinding wheel dressing, compensation,automatic feeding, automatic trimming,intermediate compensation,fine grinding delay, automatic cutter withdrawal return actions during the grinding of the work piece. Automatic grinding adopts controllable intermittent feed at the bottom of orifice and hole.

5.The internal grinder’s feed rail is GCr15 high rigidity needle roller guide rail, and the reciprocating guideway adopts flat -V type sticking plastic guide rail. The friction coefficient and damping of the guide rail are small, which can avoid the crawl of the machine tool at low speed.

Technical specifications

Grinding diameter scope: φ50-400mm

Max. Grinding depth: 750mm or 1000mm (it can be customized client’s requirements)

Max. Weight of work piece: 1000kgs

Max. Stroke of work table: 1040mm

Processing accuracy

Roundness of inner bore: 5μm

Cylindricity of inner bore: 0.02/1000

Surface roughness of inner bore: Ra0.63μm

Our service and advantage 

1/We have many experience on OEM work.

2/We can customize special hardware as customer demand.

3/Technical service for assembling.

4/Variety types for selection, prompt deliver.

5/Well-equipped with extensive sales network.

6/Advanced Production equipment and production technique.

7/Competitive Price (Factory direct price) with our good service.

8/Different designs are available according to customer requests.

9/Excellent quality testing equipment, 100% inspection on critical.


1. Q:What is your minimum order quantity, can you send me samples?

A:Our minimum quantity is 1 set, as our product is machinery equipment, it’s difficult to send you samples, however,we can send you catalog, warmly welcome you to come visit our company. 

2. Q: May i know which payment will be accepted by your company?

A:So far 100%T/T before shipment, and 30% deposit paid by T/T, balance paid by L/C are available. 

3. Q:About the after-sale service, how can you solve the problems occurred of your overseas customer in time?

A:The warranty of our machine is normally 12 months, during this period, we will arrange the international express immediately, to make sure the replace parts to be delivered as soon as possible.

4. Q:After we placing an order, will you arrange the installation of the machine at present?

A:All the machines will be tested well before delivered, so almost of them can be used directly, also our machine are easy to be installed, if you customer needs our assistance, we will be pleased to arrange the installation, but all the cost will be be charged by you.

If you're looking for the cnc deep hole internal grinder, welcome to consult the price and the quotation with our factory. As one of the professional grinding machine manufacturers and suppliers in China, we also offer you the customized service. Please be free to buy the cheap machine made in China in stock from us.