Working Principle
SC-J85D Modular VSI Sand Making Machine is a stationary vertical shaft impact (VSI) crusher designed with a modular structure, enabling flexible deployment in various sand production lines. At its core, it utilizes a high-speed rotor that throws incoming materials outward with strong centrifugal force. These materials collide either with the chamber lining or with other particles, generating powerful impact forces. This “rock-on-rock” or “rock-on-steel” crushing mechanism efficiently reduces particle size and improves aggregate shape.
Multiple feeding configurations are available—central feeding or combined central and ring feeding—allowing for adjustments based on material characteristics. The crushing chamber features replaceable liners, simplifying maintenance and reducing operational costs. SC-J85D Modular VSI Sand Making Machine also supports customizable rotor designs and distributor structures to match different raw materials and production requirements. Its modular, block-style layout makes it easy to transport, install, and expand, ensuring compatibility with various fixed production setups.
Application
SC-J85D Modular VSI Sand Making Machine is ideal for projects that demand high-quality sand with excellent particle shape and uniform grading. It plays a critical role in many fixed-site applications, including:
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Manufactured Sand Production
Suitable for processing hard materials like river pebbles, basalt, limestone, and granite into high-quality manufactured sand for use in construction, roads, and hydraulic projects. -
Commercial Concrete and Dry-Mix Mortar Plants
Acts as a core sand-making module, providing consistent fine aggregates to ensure the stability of concrete and mortar mix quality. -
High-Grade Road Construction
Produces sand with optimized shape and grading for use in asphalt mixtures and stabilized base materials, enhancing road durability. -
Comprehensive Utilization of Mine Tailings
Converts low-value waste materials and tailings into usable sand, increasing resource efficiency and reducing environmental pressure.
With its compact footprint, SC-J85D Modular VSI Sand Making Machine is well-suited for deployment in space-constrained environments. Its modular architecture significantly shortens installation time and supports future capacity upgrades. It offers an efficient and scalable solution for stationary sand-making systems where reliability and adaptability are key.
Video Presentation
Product Parameter
| Project | Name | SC-J85D |
| Feeding belt | Length × Width (mm) | 5000*1350 |
| Feeding height (mm) | 2800 | |
| Power (KW) | 5.5×2 | |
| Shaping machine | shaping machine | SK2400-D-SS |
| Maximum feed particle size (mm) | 100mm | |
| Adjustment range of discharge opening (mm) | 60-80 | |
| Weight of the plastic machine (t) | 11.9T | |
| Power (KW) | 250 | |
| Main belt | Length × Width (mm) | 9200*1600 |
| Discharge height (mm) | 2710 | |
| Power (KW) | 9.2*2 | |
| Complete machine | Overall weight (t) | 33.4 |
| Machine processing capacity (t/h) | 80-260T | |
| Total work done in crushing (KW) | 279.4 | |
| Working dimensions (length, width, height/m) | 13750×3350×3950 | |
| Transportation dimensions (length, width, height/m) | 14750×3350×3450 |
More Details
1. Single Power Version & Dual Power Version
SC-J85D Modular VSI Sand Making Machine is available in two versions: Single Power and Dual Power.
- Single Power Version: Requires an external power supply when crushing stones, suitable for job sites with stable electricity.
- Dual Power Version: More versatile. When a stable power supply is not available, the machine can operate directly with diesel.
2. Engine
- Standard Configuration: Equipped with a branded engine meeting China National III emission standard.
- Optional Upgrades: Can be upgraded to China Stage IV, EPA Tier 4, or Euro V engines to comply with local environmental regulations.
3. Delivery Terms
| Item | Terms |
|---|---|
| Delivery Time | Approx. 20–25 working days after down payment |
| Warranty | 12 months |
| Spare Parts | A full set of wear parts will be provided with the machine, and long-term supply is guaranteed |
| Service & Support |
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FAQ
Q1: What is the maximum feed size for the SC-J85D modular sand making machine?
A1: The SC-J85D Modular VSI Sand Making Machine accepts feed sizes up to 50mm (maximum 100mm). This means material should be pre-crushed by a jaw crusher and/or cone crusher before entering the SC-J85D. The VSI principle then transforms these smaller particles into high-quality manufactured sand with excellent particle shape.
Q2: What is the difference between “rock-on-steel” and “rock-on-rock” crushing?
A2: “Rock-on-steel” uses replaceable anvils/impact blocks that material strikes against — ideal for softer materials and produces a more consistent particle size. “Rock-on-rock” uses a material lining chamber where particles collide with each other — better for hard rocks like granite and basalt, with lower wear part costs. The SC-J85D supports both configurations depending on your material.
Q3: What capacity can I expect from the SC-J85D?
A3: The SC-J85D has a capacity of 260 TPH. Actual throughput depends on the feed material hardness, feed size, desired sand fineness, and whether you use central feed or dual feed (central + peripheral). For optimal sand quality, we recommend operating at 60-80% of maximum capacity.
Q4: How does the SC-J85D differ from the SC-85D mobile version?
A4: The SC-J85D is the stationary/modular version designed for fixed sand production lines. It has a total weight of 33.4t and does not include a track chassis. The SC-85D is a complete self-contained tracked unit (37.8t) with built-in feeders and conveyors for mobile operations. Choose the SC-J85D for permanent installations and the SC-85D for mobile sand-making operations.
Q5: Can the SC-J85D be integrated into an existing crushing line?
A5: Yes. The SC-J85D features a modular, block-style layout that makes it easy to integrate into existing fixed production lines. Its compact footprint (13750×3350×3950mm working dimensions) allows deployment in space-constrained environments, and its modular architecture supports future capacity upgrades.
