Application 

YAMASA MX type tools are used for the aim of the burnishing the cylindrical stepped and plain shafts. The tools provide as well as surface hardness and  at low rate calibration (measurement accuracy) beside of the burnishing.

• Used on all kinds of machining production machines such as CNC and universal lathe, machining centers, drilling or milling machines, etc.

• Pre-machining and burnishing is possible on same machine. Process is done in one pass after pre-machining.

• Because of the high processing power and speed ability it provides time saving. These are the preference causes for the serial production.

Tool Versions

There are two versions of YAMASA MX external roller burnishing tools according to the process type.    

Version 1: SF - Self feeding for plain shaft 

• Burnish the plain shafts.
• It is suitable for use such on universal lathe, drilling, milling machines.
• It makes the feeding self. If the revolution is increases the feeding speed increases self in the same rate.

Version 3: MFB - Machine feeding for plain and stepped shafts

• Burnish the plain and stepped shafts up to end.
• It can be used on all kind of machining production machines.
• Feed rate = 0,05 - 0,3 mm/rev. per roller

Technical Features

• Circumferential speed (Vc) for all versions = max. 250 m/min.
• Tools can be adjustable 0,45 - 0,50 mm according to type.
• Has a 0,001 mm precise adjustment mechanism.
• Can burnish the holes up to h7 tolerance with one adjustment.
• Burnishing all kinds of metallic materials up to the tensile strength of 1400N/mm² and to the hardness 42-45 HRC.
• Easy setting, long using life, low spare parts consumption. Every kind of spare part can be provided by YAMASA.

Tool Structure

• Tool consist of a burnishing head and a body which has a precision adjustment mechanism.
• Burnishing head consist of a cage, cone and rollers. In the same time, these are consumables.
• It is possible to mount on the same type body the roller heads in different diameter.
• There are cylindrical and morse taper shank choices are available. Rolling length is limited on the cylindrical and morse taper shanks choices. Please prefer ZU shanks for unlimited rolling lengths (see table).