Specifications

Standard Draw Type Fin Dies:
1.equipped with rapid die change options
2.flexible and accurate production capabilities

The Standard Draw Type Fin Die continues to be the most popular of all fin die types. It is valued for its versatility, economy, and ease of operation. The process of forming self-spacing collars by progressive stages of drawing and redrawing permits the widest range of fin spacing of any common fin die types. In our dies this variable spacing is easily accessed by calibrated screw-wedge systems. We have the greatest depth of experience in the industry, ranging from drawing collars up to 1 1/2 fins per inch height on large patterns to drawing collars down to 4mm tube diameters on very tight patterns.

 

fin die specifications:

The pierce extrude sub-die and louver sub-die; edge trim station; longitudinal cut sub-die; mechanical feeder station; cut-off station.

 

The sub-die have the ball support bushings to lengthen the service life of the piercing and louver puncher.

 

The fin die and sub-dies are provided with guidepost,guide sleeve, and ball retainer.

The drawing and forming punch, dowel pin and piercing die are all made of ASSAB tool steel, with machining, heat treatment, shaping grinding and polishing.

 

Upper & lower piercing, punch & die are made of Japanese material with machining, heat treatment.

 

Upper & lower side slitters, upper and lower slitter, cut-off blades are made of ASSAB88 with milling, heat treatment and grinding.

 

The die plate is made of P20 pre-hardness steel and sub die are made of CrWMn high carbon steel
with CNC processing, homogenizing, grinding and assembly.

 

The guide sleeve is made of Japanese bearing steel Gr 15, and all the springs are made of Japanese material.

Common use specification:Φ5*19.5*11.2*(6-24)R Φ7*21.0*12.7 or 20.5*12.7*(12-24)RΦ7.94*22.0*19.05*(12-18)R Φ9.52*25.4*22.0 or 25.0*21.65*(12-18)RΦ10.2*20.0*15.5*(12-24)R Φ12.7*31.75*27.5*(6-12)RΦ15.88*38.0*32.91or 38.1*22.2(6-12)RΦ19.4*50.8*38.1*(4-8)RΦ20*34.0*29.5*(6-12)RΦ25*(4-6)R, suggest to use 45 tons or 65 tons fin press under the small dies.