Construction machinery concrete spraying machine dry mix shotcrete gunite machine for tunnel

Product Description

Dry shotcrete gunite machine
Introduction of SPZ-5 Wet Mix / Dry Shotcrete Machine
Gunite, also known as "dry process shotcrete", uses a different process than wet process shotcrete. Gunite machines use air pressure to convey dry material from the machine through the hose to the nozzle where water is added. SPZ Series Electric Dry-mix Shotcrete Machine is a low to high production, continuous-feed material placement unit for dry-mix gunite or refractory materials. It is equally at home underground in a mining environment as it is on a construction jobsite. This kind gunite machine has a rotor feed system, which stands up job-after-job to ensure a long service life with low maintenance. Several hose and nozzle options are available to meet the demands of every gunite / shotcrete spraying application.
Shotcrete machine display
Tunnel gunite machine
Technical Parameters
Technical parameters table
Machine structure
Technical details
Key Features of SPZ-5 Machine
  • Non-adhesion going through rotor with new material chamber, completely eliminate bonding and blocking during operation so as to reduce clearance and maintenance period.
  • Four-point clamping device make it easy to adjust the press between sealing plate and rotor disk so as to no air and dust leak and prolong consumption parts life.
  • Low pressure and low speed vortex air transport.
  • Well compact and seal, small dust, durable rubber plate.
  • Apply to steel fiber or chemical fiber concrete spraying.
Feature display
Applications and System Configuration
System Advantages:
1. The power system is consisted by technical diesel engine or electrical engine. It can drive the pumping system directly which simplified the linkage structure and improved the efficiency.
2. The main hydraulic pump and valve group of hydraulic system is adopted Germany Rexroth open-style system with accurate and reliable exchanging.
3. The elements of electrical controlling system is adopted Japan and Germany's original parts. The excellent assembly quality fully guaranteed the function of electrical controlling system.
4. The special design of hopper and vane reduces the space of mixing blind angle thus makes the machine suitable for many kinds of concrete.
5. Intelligent and humanized design, easy to care and operate.
Application case 1
Application case 2
Application case 3
Application case 4
Packing & Shipping
Package: The wooden cases with international standard: free fumigation safe wood case package.
Delivery time: 10 working days after the confirmation of the order.
Frequently Asked Questions (FAQ)
Q1. What payment terms do you accept?
We accept: 1. 30% T/T, 70% T/T after inspecting cargo before delivery. 2. 30% T/T, 70% T/T against B/L copy. 3. 30% T/T, 70% L/C.
Q2. How can I see the machine operating before purchasing?
We can provide video links of the machine operating on platforms like YouTube, or we welcome you to visit the factory to see the machine in person.
Q3. What is the difference between dry and wet shotcrete?
Dry process shotcrete (gunite) uses air pressure to convey dry materials to the nozzle where water is added. Wet process involves pumping pre-mixed concrete to the nozzle.
Q4. Can this machine handle steel fiber concrete?
Yes, the SPZ-5 series is specifically designed to apply to steel fiber or chemical fiber concrete spraying without blocking.
Q5. Is the power system customizable?
Yes, the power system can be configured with either a technical diesel engine or an electrical engine based on the client's specific requirements.
Q6. What is the lead time for delivery?
Standard delivery time is 10 working days after order confirmation, using international standard fumigation-free wooden cases.

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