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Dies and Rolls
World´s leading manufacturer of Pellet Mill Dies
The Manufacturing Process
Every tiny part of the die has, at some stage been produced with a single machining operation. A mid-sized die with 4mm holes will have as many as 10,000 holes. Add to that a countersink and a counterbore and you are looking at 30,000 machining operations, each one conforming to the accuracy of the pattern. Add drilling and tapping bolt holes, milling keyways, turning up the basic shape of the die blank, cleaning, drying, vacuum hardening, tempering and finally finishing to the fitting sizes and the entire production of the die has gone through nearly 40,000 separate machining, processing and handling operations.
Materials
We offer a range of Chrome Steel Alloys. By varying the Vanadium, Chromium, Manganese Nickel and Carbon content we can select a material to suit every individual requirement for a wide range of operating anvironments.
Precision Machining
With our technical support, customers take great care in specifying the size, shape and pattern of the holes they require for their dies. We meticulously follow these instructions and through an automated production process manufacture the dies with accuracy and repeatabillity.
Heat Treatment
Our experienced operators establish heat treatment programmes for dies going into the vacuum hardening ovens. The heat treatment process is of outmost importance as it guarantees the uniformity of the product. We have invested substantially in the most modern hardening technology to produce a die with long lifetime and high performance.
The cornerstone of our quality assured product range
Raw materials:
We select premium quality steels with fine grain structures to give greater strength and durability.
Machining:
CNC machining centres programmed with die dimensions for all makes and models of pellet mills, machine the basic shape of the die with precision accuracy.
Gun drilling:
A faster and accurate process for producing highly polished extrusion holes. We pioneered this technique in the early 80`s. By optimising drilling speed and controlling lubricants TS produces the finest peleting dies in the world.
Automated countersink:
Carefully following the drill pattern, the countersink is machined into the die track. Countersink sizes are selected to enhance pelleting performance.
Washing and Polishing:
Oil, moisture and machining burrs are removed from the surface of the die prior to heat treatment.
Vaccum Hardening:
A hard wearing surface in the holes will maximize the life of the die. Air is removed to create an inert environment. The die is heated in stages controlled by a microprocessor up to s temperature of 1010C and the steel changes to a harder molecular structure through hardening.
Finishing and final Inspection
Quality assured systems monitor the product throughout the manufacturing process. At the final stage, and as the die is machined to fit the pellet press perfectly, we check that the product conforms to the original specifications. Dies are then packed and prepared for dispatch to all parts of the world.
Roll Shells
Roll shells operate in extremely harsh conditions. Massive forces are transfrred from the die face through the bearings to the roll support shaft. It is vital that the dimensions are accurate and that the hardening process is of a very high standard. We have developed roll shells to match the excellent performance of its dies. Roll shells are available in several patterns, dimpled and fluted. We will help the customer to select the correct design for the application.
Beaters
Profiled snd hardened on our premises, the TS beater has estalished an excellent reputation as good value for money. Now in the third generation of steels, our beaters optimize hard wearing proporties with strength and durability. We manufacture any size or shape of neaters to fit all models of hammermills.
 
andritz-fb@andritz.com Contact us: +45 72 160 300
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