In its program, Production and Engineering Company ENCE GmbH highlights the most significant metallurgical equipment; this equipment complies with the highest international quality standards and may be offered to customers at competitive prices.
The engineering company ENCE GmbH can offer you complete stations and machines, as well as accessories and various associated equipment for rolling mills, for automatic steel strip
pickling lines, hot dip galvanizing lines for steel coils, strip paint and coating lines and bending machines. Particularly the company ENCE GmbH can specify the required shot blasting machine to shot peen the rollers of rolling mills based on the technical data provided by the customer, as well as we can supply the machine, provide installation supervision and commissioning and
|Surface roughness||1.5–3.5 µm|
|Peaks density per 1 mm||from 30 to 80|
|Peaks density per||2290 l/min|
|Head size &||6.4 mm (tungsten carbide)|
|Processing cycle &||up to 2 hours (continuous)|
The engineering company ENCE GmbH invite you to view this illustrative description of the automatic shot blasting machine for working mill rollers once handled as one of the available machine constructions.
|Dimensional specification of the rollers to be shot blasted:|
|Roller length||200 — 2800 mm|
|Roller diameter||50 — 500 mm|
|Max. roller weight||2500 kg|
|Dimensions||1650×4350×1750 (H) mm|
|Machine weight (w/o abrasive material)||1850 kg|
|Fan motor capacity||approx. 4 kW|
|Dust collector capacity (fan capacity)||4000 m3/h|
|Dust collector cycle (filter cycle)||continuous|
|Solids (dust) emission||Less than 5 mg/nm3|
|Compressed air flow rate||2290 l/min @ 6 kg/cm2|
|Nozzle size||6.4 mm, tungsten carbide|
|Shot blasting cycle||Approx. 45 min of continuous working|
|Recommended abrasive materials||Steel grit or cast iron shot|
The shot blasting machine for roller shot peeing works with pressure feed system and is suitable for automatic shot blasting of rollers.
The shot blasting machine is provided with motorized carriage that is moveable along the whole roller length of 2800 mm. The shot blasting machine has also labyrinth seal to minimize wearing out and consumption of mechanical parts.
The proposed shot blasting machine to texture the roller’s surfaces doesn’t require any foundation.
During the automatic cycle the shot blasting machine can handle different rollers with diam. 415 mm and length 2605 mm using nozzle diam. 6.4 mm; with max. pressure of 7 bar and 220 l abrasive tank. It works with installed panels 40 mm thick, with micro ribbed surface.
The roller shot blasting machine is equipped with:
The frame of the roller holder is integrated in a welded tubular structure of the housing to move the carriage holding the tailstock. Maximal load: about 2000 kg.
It consists of:
The left and right movement of the carriage holding the shot blasting nozzle is electronically controlled. By starting the automatic cycle the carriage begins to move and it makes possible to set the shot flow speed by means of potentiometer and inverter that are controlled with special computer, for final finishing treatment of each roller.
The recovery is made by using a special transport system. This system is driven by a 0,5 kW motor and transfers the abrasive material into a bucket elevator.
The abrasive collecting system covers all the length of a special feed hopper and extends one side for 2 meters outside the machine to connect a chain conveyor.
The system is hermetically sealed to prevent dust to get into the environment.
The transport system transfers the abrasive material into the recovery and regeneration system, which consists of:
The steel abrasive is cleaned from dust and conveyed to the vibrating screen. The screen is controlled by a 0,48 kW
gear motor and extract exactly the grit size that is required to shot peen. Thereafter the grit is collected in a 300 l bunker and is ready to be
The shot blasting machine works under pressure with free jet, 220 l capacity, working pressure 2÷7 bar, test pressure 10,5 bar, tested according to PED with the following accessories:
|Dust cleaning system with |
|Flow rate||4000 m3/h|
|Fan capacity||4 kW approx. (220 V)|
|Total surface||80 m2|
Device for cartridge cleaning
It is performed by means of few solenoid membrane valves, which are fed with compressed air at 4÷6 bar from a common tank and sending to the cleaning nozzles.
The air containing dust comes from underneath cartridge side; the dust is held up on the cartridge outer surface and than leaves the filter.
The filter cleaning is made in sequence by compressed air coming through nozzles located on the Venturi tubes.
The powder falls down into lower collecting tanks and than into bags.
The cleaning cycle is automatically controlled by an electronic timer and the solenoid membrane valves working in accordance with a preset program.
The duration of compressed air stroke and frequency can be easy set by means of the timer.
|Electric control board for the dust collector:|
|Electrical supply:||220 V approx.|
|Supply voltage:||380V, 3ph — 50 Hz|
|Voltage for lightening:||220V 1 phase|
|Series of longitudinal trolleys of the transport system||0,5 kW|
|Suction fan||4 kW|
|Motor for cylinder rotation||1 kW|
|Motor for vibrating screen||1 kW|
|Total power, approx.||6,95 kW|
Corrosion resistant primer on all surfaces, careful brushed and finished: blue RAL 5015 — gray RAL 7035.
REMARKS: The machine supply includes also the Certificate of Conformity according to the machine instructions 2006/42/CE with CE marking and 1 copy of the operating and maintenance manual.
12 month applied to all defective construction parts as well as defective materials, the normal wearing parts are excluded from this guarantee.
The warranty covers the replacement of the defective parts made under
The main advantages of the proposed shot blasting machine for texturing of the roller surfaces:
In order to increase the efficiency rate and the rated output of the shot blasting machine for rollers the company ENCE GmbH recommends to use various robot systems that have a number of advantages:
Engineering company ENCE GmbH can submit you with detailed information on any technical and commercial issues of shot blasting equipment and inform you also of other equipment that can be supplied by ENCE GmbH company for metal production plants; all the information you can also find in different languages on the company main website for metal industry.