Deep hole drilling & boring 3mm to 1100mm Ø, up to 12m long
 		   Honing 40mm Ø to 1100mm Ø, up to 20m long H9 or better on request.  Surface roughness RA max 0,4 µm

Skived and rolled burinished tubes

Base material can be either cold-drawn seamless or welded or hot - rolled tubes.  We mainly use seamless or hot rolled tubes.

The surface roughness is RA max = 0.2 µm with an extremely high support profle for reduced seal wear.  Tolerance H9 or better.

  

 

Skive and burnishing 40mm Ø to 220mm Ø, up to 7m long

 		   Turning 1250mm swing over bed, up to 10m between centres.  CNC Machining 410mm spindle bore 1250mm swing 6m between centres.   Special precision rollers made up to order for all industries,

 
         
   
Boring & Honing Extruder barrels
 		   Fully equipped toolroom
 		   Stainless steel barrel checked before machining & honing
         

Largest barrel bored & honed in the country being measured		  
One of the many racks of tubing		  
        Tubes checked for surface finish before dispatch

 

Make-up of complete cylinder barrels or re-tubing of existing cylinders, any make.  We also supply hone after weld tubing at no extra cost for honing, to ensure a accurate size.

  
   

       
            Make up your own cylinders
            Cylinders kits consist of:
            1. Cast iron gland
            2. Double acting piston
            3. Complete set of seals and wipers
            4. End caps
            5. Nylock Nut
            6. 2 x weld on ports

       

Cylinder size Rod size
40 mm 20 mm
40 mm 25 mm
50 mm 25 mm
50 mm 30 mm
60 mm 30 mm
60 mm 35 mm
63 mm 35 mm
63 mm 40 mm
70 mm 35 mm
70 mm 40 mm
75 mm 40 mm
80 mm 40 mm
80 mm 50 mm
90 mm 45 mm
90 mm 50 mm
100 mm 50 mm
100 mm 60 mm
120 mm 70 mm
125 mm 70 mm
140 mm 80 mm
150 mm 80 mm
160 mm 90 mm
180 mm 120 mm
200 mm 120 mm
250 mm 150 mm
   

Tolerances - Inside Diameter
Inside Diameter Inside Diameter Tolerances (mm)
(mm) All unilateral, with - 0.000 mm
Over uti H8 H9 H10 H11
    + + + +
40 50 .039 .062 .100 .160
50 80 .046 .074 .120 .190
80 120 .054 .087 .140 .220
120 180 .063 .100 .160 .250
180 250 .072 .155 .185 .290
250 315 .081 .130 .210 .320
315 380 .089 .140 .230 .360

 
 

SS Honed tubing made up and stocked