Logo, skb S.K. BERI & BROTHERS
Logo, skb
Largest Manufacturer and Exporter of Industrial Knives and Blades in India.

Automative Tyre & Rubber Industry

We offer the largest range of knives of Automotive Tyre & Rubber Industry

Score Slitting Knives
¤ Score slitting knives,             ¤ Mill and calener knives,    ¤ Tread knives
¤ Pin vent trimming blades,    ¤ Bias cutters

  Score Slitting Knives  Score Slitting Knives  Score Slitting Knives

Score Slitting Knives - DIMENSIONS

skberi offers a wide selection of slitti knivves are available in two (2) grades of steel.
Standard grade AISI 52-100
Semi-High speed AISI 0-7

Manufacturing Tolerances:
Score Slitting Knivesthickness: .0005"
hole size: .00015"
Central to hub
Edge: .001
Hardness : 62-63 RC

The semi high speed grade is optimum for usage in cutting highly abrasive materials. The 0-7 tool steel will outwear the 52100 approximately 2 ½ times in abrasive applications. If knives dull from edge fatigue or crumbling, then 52100 will work nearly as well for less money.
Any score slitting knife can be made from D-2 or high speed steel.


Mill and Calender KnivesMill and Calender Knives

These knives are made to remove stripsw of rubber or plastic from mills or calenders. The knives are not intended to rotate during operation, as this would tend to score the rolls. The pinholes are a means of indexing and holding the knives in a new position when dulling occurs.

All knives are made of chromium tool steel that has exceptional edge properties at 50 rockwell c hardness.

Mill and calender knives to specifications not shown are available made to order.



Tread Knives
Tread Knives
The tread skiver knives shown here are made from AISI A-2 tool steel. The fact that A-2 contains 5% chromium does not make it a true stainless steel, but it resists rust. At 52 RC hardness, these are the best knives on the market. In addition, these knives are available in other air-hardening grades of tool steel upon request.

Optional Edge Treatments

Tread Knives

8 radial slots-1/8"w x 1 ½"D drilled and slotted as pictured tungsten carbide plating teflon coating.

skberi tread skivers are dished 1/64" so that the flat side does not become convex at high speeds, and static lateral run out (wobble) is less than .005".

more...