'Santec' Rubber Bale Cutters are known for precision, quality, performance & value. This machine is used for cutting raw rubber into a small rubber blocks to be plasticated. These are mainly used to cut the natural rubber, synthetic rubber & other plastic materials.

The machine is made up of knife or precision blade, hydraulic cylinder, column, base & power pack unit. The hydraulic oil supplied by the hydraulic power pack unit actuates the knife through cylinder. The rubber block under the knife is cut up. Having fulfilled one cut-off motion the knife goes up & resets automatically.

The lead or nylon is casted on the base under the knife for protecting the edge of the knife/ blade.

Technical Details for Single Cut Type Bale Cutter :

Capacity	10 Tons	15 Tons	20 Tons	25 Tons
Stroke	12''	15"	20"	24"
Blade Size	18''x8" (Height)	24"x10"	30"x10"	32"x10"
Cutting Time	12 to 15 Seconds	20 Seconds	20 Seconds	12-15 Seconds
Electric Motor	3 H.P.	5 H.P.	5 H.P.	7.5 H.P.
Weight	1.5 tons	1.5 tons	2 tons	3 tons
Roller Bed Length	18'' x 30''	24"x30"	30"x30"	32"x30"

* Custom Built Balers can also be made on request.
Technical details of 4 Cut Type Bale Cutter

Type	4 Pillars Type	4 Pillars Type
Capacity	30 Tons	60 Tons
Stroke Length	18''	18"
Blade Size	32" + 26"	44" + 40"
Type of Blade	Four Cut, '+' Shaped	Four Cut, '+' Shaped
Motor	7.5 H.P., 380/415 V, 50 Hz.	7.5 H.P., 380/415 V, 50 Hz.

* Custom Built Bale Cutters are also manufactured by Santec.

This special attachment can be fitted on mixing mills to assist the operator in mixing & rubber material & chemical powder. It features continuous automatic operation saving labour indulgence, provide safety to the operator, faster productivity & reduce material temperature.

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Process
The extruder has two main functions : to pump the rubber compound through the barrel & to generate enough pressure in the process to force the material through a die to give the required cross-sectional shape.

The compound, usually in the form of a strip, is fed at a controlled rate into the extruder, which imparts heat & some distributive mixing moves the material along the machine & generates the necessary pressure. After leaving the die, the product has to be cured, cooled often cut to length & packaged or coiled for transport to the customer.

Type

• Cold Feed Extruders
• Hot Feed Extruders

Cold Feed Extruders
In these extruders a special design screw is used as in addition to compacting & pumping the stock, screw has to plasticize it. The extruder consists of an extruder unit, temperature control unit & drive gear box & motor unit & all these units are mounted on common bed. No pre-heating of compound is required so compound can be feeded on room temperature thus reduce labour cost, higher accuracy in the dimension & extrusion results accurate temp. control & better product quality.

Hot Feed Extruders
The major goal in hot-feed extruder design is to keep temperature rise to a minimum, the function of the screw is simply to compact & pump the compound.

The hot feed extruders are best suited for the production of chords, strips, profiles, tubing, channels & treads. 'Santec' extruders are fitted with two stage helical gear box in place of worm reduction gear box for achieving high efficiency.

Construction Details
Scroll : Double flighted scrolls made from special alloy steel precision machined hardened & fine polished.

Barrel : For hot feed extruders single piece construction made from high quality rolled steel plates. For cold feed extruders two piece construction from special alloy steel. Highly polished barrels are provided with welded jackets.

Liner : Fine polished wear resistant liner made from special alloy steel.

Extruder Head : Standard adoptor head made from steel plates with fabricated jacket & designed to accept common die assemblies & held with a lock nut.

Transmission Gear Box : 2 Stage helical gear box with all gears mounted on parallel shafts & oil lubrication to give 98% transmission efficiency.

Optional Accessories

• Variable speed drive
• Die Head
• Temperature Controlling Device : It consist of water circulating systems with motor, pump, sol. Value, electric heater, relief value, pressure switch, manual shut of value & solid state temp. indicating controller to provide an accuracy of 2 degree cel.