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Putzmeister’s Concrete Spraying Technology
For over 30 years Putzmeister has been designing, developing and producing concrete spraying equipment for mines and tunnels.
For over 30 years Putzmeister has been designing, developing and producing concrete spraying equipment for mines and tunnels. The experience acquired over these years together with ongoing investment in research and development, have made Putzmeister a leading company in this field of application. It is this experience and search for added value for our customer that makes us different.
The main components of Putzmeister concrete spraying equipment, spraying arm, concrete pump, chassis and control software are designed, developed and produced in-house in order to offer perfectly synchronized equipment tailored to our customer’s needs and the toughest working conditions.
SPM 500 WETKRET
The SPM 500 WETKRET series has proven its efficiency and reliability in a large number of projects all over the world. With a vertical spraying reach of 17 m and a concrete flow of 30 m3/h, the machine is suitable for both medium and large section tunnels, galleries and slopes.
The standard version of the SPM 500 WETKRET series is operated electrically and is optionally available with an electric air compressor built into the chassis.
SPM 500 WETKRET DIESEL DRIVE
The SPM 500 WETKRET DIESEL DRIVE version is equipped with a diesel drive system so that all the spraying operation components can be operated by the combustion engine, which means the machine works in places where no power supply is available.
AUTOMATIC SYNCHRONIZATION OF ADDITIVE DOSAGE AND CONCRETE FLOW
The SPM 500 WETKRET series is equipped with an automatic system for high precision synchronization between the concrete pump and the additive dosing unit. The peristaltic additive pump is controlled electronically. It is equipped with an automatic dosing device proportional to the concrete flow, thereby assuring spraying accuracy and quality. This pump is built with wear and corrosion-resistant components and is able to work with liquid additives of all kinds.
STURDY, FAST AND PRECISE:
Thanks to its articulated and telescopic design, the arm can be deployed in a minimum section. The hydraulic spray lance allows horizontal alignment to be maintained automatically, which facilitates handling the spraying arm. The automatic spray lance movement and nozzle oscillation facilitate the operators work, so that he can concentrate on spraying finish quality, while increasing productivity and efficiency. The anti-stick system of the telescopic arm extends the life of the components and facilitates cleaning.
ALL CONTROLS AVAILABLE IN REMOTE CONTROL
All the machine functions are available in the remote control, including automatic spraying sequence start and stop functions (air, concrete and additive), which facilitates the operator´s work. The remote control permits full regulation of concrete output, as well as adjustments to the predefined additive dosage.
PUTZMEISTER CHASSIS: STRONG, COMPACT AND VERSATILE
The chassis is designed to work in the toughest conditions in line with the requirements in mines and tunnels. Over and above its compact dimensions, the four driving and steering wheels and the “crab mode” increase its perfect manoeuvrability in difficult driving situations even more. The machine has
2 front and 2 rear legs, offering protection against possible impacts. This permits the proper stabilization of the machine so as to proceed with operation on any kind of ground. Its optimum ground clearance permits agile driving over uneven surfaces. The two-speed driving system allows the machine to travel quickly over level surfaces and climb gradients of up to 35% at low speed.
Thanks to its positioning and design, the driver cabin assures perfect visibility in any situation.
ON-BOARD COMPRESSOR: FOR TOTAL AUTONOMY
Despite its compact size, the SPM 500 WETKRET series includes the option of an electric worm compressor built into the chassis, which endows it with high mobility and the possibility to work autonomously. The air flow of 11 m3/ min permits efficient high quality spraying.
SPM 4210 WETKRET SERIES
The SPM 4210 WETKRET series opens a new chapter in efficient technology for concrete spraying in mining. Its spraying arm, of Putzmeister in-house design and manufacture, has a reach of 10 m.
The dual cable and wireless proportional remote control permits easy handling of the arm movements, besides regulation of the concrete flow and adjustment of the additive dosage. With state-of-the-art axles, the heavy-duty chassis is suitable for the toughest working conditions.
At Putzmeister we devote our efforts to continually presenting the most efficient concrete spraying equipment as a complete system. With the SPM 4210 WETKRET a new stage in development has been reached.
SPM 4210 WETKRET
The standard version of the SPM 4210 WETKRET series is operated electrically and is optionally available with an electric air compressor built into the chassis.
SPM 4210 WETKRET DUAL DRIVE
The SPM 4210 WETKRET DUAL DRIVE version has a dual drive system so that all the components can be operated both by diesel engine and electrically. The unit is equipped with a catalytic converter as standard and is optionally available with an electric or diesel air compressor, built into the chassis.
SPM 4210 WETKRET ROTOR
The SPM 4210 WETKRET ROTOR version is ideal for mechanized dry mix Shotcreting in mining, offering the same level of sturdiness in the chassis as the standard model. The unit includes the option of an air compressor built into the chassis.
SPRAYING ARM: STRENGTH, ERGONOMIC DESIGN AND REACH
With a vertical spraying reach of 10 m, the spraying arm provides the operator with high-speed reaction and precision in the telescopic arm opening and closing, raising and turning movements. The new arm design is reinforced with a cylinder-ring gear turning system. The hydraulic cylinders of the telescopic arm have been fitted externally and covered for full protection. In this way, easy access is available for maintenance without forgoing protection of the machine.
ALL CONTROLS AVAILABLE IN PROPORTIONAL DUAL REMOTE CONTROL (RADIO/CABLE)
The SPM 4210 WETKRET series’ proportional remote control permits full regulation of the concrete output as well as adjustments to the predefined additive dosage. In this way, the machine can cope with the changing working conditions in mines, where the rock varies in composition, strength and stability, so the machine operator must act flexibly in terms of concrete output and additive dosing, in accordance with the requirements regarding early strength and drying times in each specific situation.
All other functions of the machine are also available by means of remote control, including automatic spraying sequence start functions (air, concrete and additive), facilitating the operator´s work.
HEAVY DUTY CHASSIS WITH STATE-OF-THE-ART AXLES
The chassis is designed to meet mining demands and made of high-resistance steel to stand the harshest working conditions. The SPM 4210 WETKRET incorporates innovative, state-of-the-art axles as well as a reinforced turning system. Central articulated turning and the small size of the machine endow it with magnificent manoeuvrability, which is a must particularly in low-profile mines. Its four driving wheels and the four-wheel braking system increase the manoeuvrability of the machine in difficult terrain even more. Its excellent climbing capacity and great ground clearance facilitate off-road driving.
CONFIGURATION OF THE EQUIPMENT ACCORDING TO THE WORKING ENVIRONMENT
Putzmeister offers its customers a series of optional equipment perfectly studied to provide the best possible configuration according to the characteristics of the working environment.
If you have any questions, please email Putzmeister at – email@example.com Or Call: 08329669 6094