The Voortman shot blasting machines are specially designed for shot blasting of plates and profiles and are made out of high quality components, giving the best blasting results. Long lifetime components are used to minimize the wear of the machine, which is essential on the inside due to the blasting process. Pre-installed blasting programs and automatic functions make the shot blasters fast and easy to work with. The compact design of the shot blaster reduces the required working space to a minimum, without compromising on functionality and quality.
Voortman VSB Range Details: BLASTING CABINET WITH TRIPLE LAYER HOUSING The housing of the blasting cabinet exists out of 3 layers of steel: the main housing is made out of 8 mm (5/16”) mild steel, the inside of the blasting cabinet has an 8 mm (5/16”) manganese steel lining, and the hot-spots have another 10 mm (3/8”) manganese steel protection plate. All layers are bolted from the outside, so they are easy to replace.
HARDENED ROLLS The rolls inside the blasting cabinet are from thick hardened steel to make sure they do not wear during the blasting process.
LIGHT CURTAINS A light curtain detects the front and back side of the product(s). Therefor the machine opens the valve for the abrasive, only then when there is material. This increases the life time of the wear plates.
SEPARATOR Using a cascade plate combined with air flow from the filter unit this system collects good abrasive which it sends back to the abrasive container. Waste abrasive falls into a dust bag, and fine dust goes to the filter unit.
AUTOMATIC ADJUSTABLE TURBINES This option is frequently used on the VSB2500 shot blasters. In case of blasting wide plates the outer turbine angles are adjusted to give maximum blasting power over the total width. In case of blasting beams, which are centrally placed on the conveyor, the outer turbine angles are adjusted to give more blasting power to the middle of the conveyor. A big advantage: Higher speed by smaller width and less wear on the machine.
LONG TURBINE AND MOTOR LIFESPAN The turbines which are used for all Voortman shot blasters are made according to a design used for many years. Each turbine set has a separate abrasive valve to start the abrasive flow only when material reaches the turbine, so damage to the machine because of running empty is minimized. Each turbine is connected to its motor with flexible couplings supported by double bearings for maximum stability. This reduces the wear of the motor to a minimum.
NOISE INSULATION With noise insulation panels closing down the sides of the VSB1500 and VSB2500 models, the sound level is reduced to less than 85 dB.
AUTOMATIC ABRASIVE REFILL To prevent shutting down the shot blaster to refill the abrasive container, a separate abrasive container can be placed next to the shot blaster which can be refilled without disturbing the blasting process. A sensor in the main container gives a signal to start the transfer of abrasive between the containers.
BRUSH AND BLOW OFF UNIT The brush and blow off unit cleans the material from abrasive after blasting. The height of the brush is automatically adjusted using an infeed light curtain that measures the height of the material.
ELEVATOR The elevator transports the used abrasive to the separation system. For easy replacement of elevator parts the machine has a push button next to the elevator to rotate the belt manually.
FREQUENCY CONTROLLED TURBINES AND ABRASIVE To blast plates down to 4 mm (5/32”) thickness the following adjustments have to be made to the machines: the abrasive valve has to be controlled to limit the abrasive flow and the turbines are fitted with frequency controllers to lower the speed of the turbines. Additional rolls have to be added to prevent bending of the thin plate inside the machine.
SCREW CONVEYOR A double screw conveyor brings all the used abrasive to the elevator to be cleaned and re-used.