CONSTMACH's JS-2 mobile crushing plant stands as a reliable solution for operations dealing with low to medium hardness materials. Whether you're processing limestone, riverstone, dolomite, or basalt, this dual-chassis system delivers consistent performance in demanding conditions. The engineering behind JS-2 reflects years of experience in the crushing industry, combining thoughtful design with quality components that hold up under continuous use.
The plant operates on a two-chassis configuration, with each unit serving distinct functions in the crushing process. The first chassis houses the primary jaw crusher CJC-90, paired with a feeding hopper and vibrating feeder that manages material intake efficiently. A by-pass conveyor handles soil extraction, keeping unwanted fines separate from the crushing circuit. The wheeled mobile chassis features hydraulic legs for stability during operation, and the integrated dust removal system addresses environmental concerns right from the start. This setup can handle feed sizes up to 850 x 600 mm, making it suitable for quarries and construction sites where oversized material is common.
The second chassis brings together the CSI-1212 secondary impact crusher with a three-deck vibrating screen. This combination allows operators to produce three or four different fractions simultaneously, which adds versatility to product output. The feedback conveyor recirculates oversized material from the screen back to the impact crusher, ensuring efficient reduction without manual intervention. Fold-up stockpile conveyors minimize the footprint during transport while providing ample discharge height during operation. Like the first unit, this chassis also includes hydraulic legs and dust suppression equipment.
Production capacity ranges between 120 and 150 tons per hour, though actual output depends on material characteristics. The secondary impact crusher deserves special attention here. Its design produces aggregates with excellent cubical shape and a favorable distribution of fine particles, which concrete producers particularly value. The 420 kW total motor power drives the system efficiently, while an optional 650 kVA generator set enables completely autonomous operation in remote locations.
One aspect that sets this mobile crusher apart is its automation system. CONSTMACH equipped the JS-2 with SIEMENS and SCHNEIDER electronic components managed through a PLC controller. Operators run the entire plant from a tablet, adjusting parameters and monitoring performance without moving between different control points. This level of integration reduces the learning curve and minimizes operator error.
The plant's mobility credentials extend beyond wheels and hydraulic legs. Both chassis conform to international road transport regulations, measuring 11 x 3.4 x 4.4 meters and 16 x 3.65 x 4.5 meters respectively. The combined weight of 80,000 kg distributes across the two units, making relocation between job sites straightforward with appropriate transport equipment. When hydraulic opening mechanisms are added to the feeding hopper and stock conveyors, the setup process becomes even simpler. Operators can deploy the mobile crushing plant without external equipment like cranes or loaders, which translates to faster mobilization and reduced site preparation costs.
The feeding height of 5.7 meters provides good clearance for loading equipment, allowing wheel loaders and excavators to work efficiently. This dimension strikes a balance between operational convenience and transport limitations. The JS-2 doesn't require extensive foundation work or complex installation procedures. Once positioned and stabilized with hydraulic legs, the plant is ready for production in minimal time.
Material flow through the system follows a logical path. Primary crushing in the jaw crusher reduces large feed to intermediate sizes. The material then moves to the impact crusher for secondary reduction and shaping. The three-deck screen separates the product into specified fractions, with oversized pieces returning for additional crushing. This closed-circuit configuration ensures consistent gradation and reduces waste. The by-pass feature on the first chassis adds flexibility when dealing with variable feed materials, allowing operators to extract soil or other unwanted components before they enter the crushing circuit.
CONSTMACH built the JS-2 for contractors and quarry operators who need reliable mobile crushing capacity without sacrificing product quality. The plant serves medium-scale operations where aggregate specifications matter and production consistency directly impacts profitability. Its dual-chassis design provides both jaw and impact crushing in one mobile package, eliminating the need for separate units and the coordination challenges that come with them.
