Quzhou Horbon Mining Parts Co., Ltd. is one of the leading manufacturers and suppliers of white crusher rotor in China. With abundant experience, we are committed to providing high quality customized service and OEM service to global clients. Welcome to buy advanced white crusher rotor made in China here from our factory. Contact us for quotation.
White Crusher Rotor - VSI4000 4-Port Rotor Assembly & Wear Parts for Vertical Shaft Impact Crushers
The Rotor Is Where VSI Performance Begins
Every tonne of product your vertical shaft impact crusher produces passes through the white crusher rotor. Feed material enters the rotating disc, gets distributed across four symmetrical port channels, accelerates to operating velocity, and exits through tip holders that define the final trajectory before impact. The condition of every internal wear surface - from the distributer plate at center to the trail plates at each port exit - directly determines particle shape consistency, energy efficiency per tonne, and the interval between planned maintenance shutdowns.
For procurement teams and plant engineers, this makes the VSI rotor a high-stakes supply decision. Dimensional inconsistency between ports introduces imbalance. Substandard wear alloys shorten replacement intervals. Incompatible taper lock geometry creates shaft fit risk. Getting it wrong doesn't just mean a premature part failure - it means unplanned downtime on a machine that may be the final stage of a production line.
Quzhou Horbon Mining Parts Co., Ltd. manufactures the VSI4000 4-port rotor assembly and all 25 associated components at our dedicated 13,000 m² production facility in Quzhou, Zhejiang. Factory-direct supply. No intermediary. Full wear part range available individually or as a complete assembly.
Assembly Specifications at a Glance
Crusher drawing
| Specification | Value |
| Product Name | White Crusher Rotor - VSI4000 4-Port Rotor Assembly |
| Assembly Part Number | 2103030016 |
| Compatible Equipment | MP VSI4000 Vertical Shaft Impact Crusher |
| Rotor Configuration | 4-Port / 4-Channel |
| Rotor Diameter | Ø840 mm |
| Rotor Height | 448 mm |
| Shaft Bore Inner Diameter | Ø390 mm |
| Shaft Bore Outer Diameter | Ø420 mm |
| Balance Provision | Static Balance Adjustment Bolt Holes |
| Total Assembly Line Items | 25 Components |
| Minimum Order Quantity | 5 pcs per part number |
| Production Lead Time | 15–30 Days |
| Shipping Terms | FOB / CIF - Shanghai / Ningbo |
Component-by-Component Supply Guide
The VSI4000 white crusher rotor is a multi-surface wear system built around a long-life structural core. Horbon supplies every line item - from the rotor body through to fasteners and thread-locking compound.
Rotor Body - Code 2801030203
The load-bearing foundation of the entire assembly. Four symmetrical port channels are cast into the rotor body geometry and finish-machined to ensure consistent port-to-port dimensions. The shaft bore (Ø390/Ø420 mm) is precision-machined for a controlled interface with the taper lock system. Static balance adjustment bolt holes are incorporated for field correction after wear part installation. Under a proper wear part maintenance schedule, the rotor body is a long-service structural component that significantly outlasts the consumable wear package built around it.
Taper Lock Ring - Code 3103030061 | Taper Lock - Code 3103030004
These two components form the rotor-to-shaft connection. The taper lock system generates a precision interference fit between the rotor bore and main shaft without relying on keyways - eliminating the fretting and loosening that key-based connections develop under sustained vibration. Correct installation torque on the taper lock screws is critical; Horbon provides installation documentation with every assembly shipment.
Backplate - Code 3103030054
Closes the rear of the rotor assembly, protecting internal structural surfaces from recirculating material that rebounds off the anvil ring or rock shelf back toward the rotor underside.
Port Wear Package (× 4 per assembly - one set per port)
Trail Plate
Positioned at the trailing edge of each rotor port, the trail plate intercepts the high-velocity abrasive jet at the point where material exits the rotor. It is one of the most aggressively loaded wear surfaces in the assembly. All four trail plates must be replaced as a matched set - individual replacement creates a mass imbalance that transmits vibration through the bearing system.
Trail Plate Support
The structural bracket that holds each trail plate at its design angle within the port. Maintains port exit geometry as the trail plate progressively wears, ensuring consistent material trajectory until the trail plate reaches its replacement threshold.
Upper Wear Plate-B
Lines the upper internal wall of each port channel. Upper wear plates are consistently among the shortest-interval replacement items in the VSI rotor wear package - their position exposes them to sustained sliding abrasion from the accelerating material column passing through the port.
Lower Wear Plate-B
The lower port wall equivalent of the upper wear plate. Together, upper and lower wear plates form a complete protective lining for the port channel walls, preventing direct abrasive contact with the rotor body casting beneath.
Tip Holder
Mounted at the port exit point, the tip holder is the seat for the wear tip that defines material exit velocity and trajectory angle. The tip holder itself is a precision-machined component; wear tip geometry at all four ports must remain consistent to maintain balanced rotor discharge and symmetrical anvil ring wear. Condition inspection of tip holders at each wear plate change is strongly recommended.
Wear Plate
Standard internal wear plates providing supplementary abrasion protection on rotor body surfaces within the port channel that fall outside the primary upper/lower wear plate coverage zone.
Central Wear Components
Distributer Plate - Code 3103030056 Installed at the rotor center directly beneath the feed entry point. The distributer plate divides incoming feed into four equal streams - one per port channel. Uneven distribution causes differential wear rates between ports, which progressively introduces rotor imbalance and accelerates selective port wear. Distributer plate condition is a leading indicator of rotor health: if port wear patterns diverge, inspect the distributer plate before replacing other wear components.
Top Wear Ring - Code 3103030051 Protects the upper face of the rotor body from material recirculating above the rotor disc during operation. A direct-impact wear surface in high-throughput applications.
Down Wear Ring C - Code 3103030050 Protects the lower rotor face from abrasive material that circulates beneath the disc. The C-type designation identifies the specific geometry for the VSI4000 configuration - ensure correct type code when ordering to avoid installation incompatibility.
Fastening & Retention Hardware
The complete fastener set includes
- hex screws (6101020080 × 8),
- washers (6103010010 × 8),
- hex nuts (6102170001 × 8),
- spring washers (6103110014, 6103110038),
- cap screws (6101080029 × 16),
- nuts (6102010021 × 16), and Pin-A (3103030149 × 4).
Threaded glue (7199010005) is specified for critical fastener joints. Horbon supplies the complete hardware kit - ordering fasteners separately from a local supplier risks dimensional or grade mismatches that compromise joint integrity in a high-vibration application.
Wear Part Replacement Logic - A Procurement Framework
VSI rotor maintenance is not a single-event overhaul. It is a layered replacement cycle where different components reach end-of-life at different intervals. Understanding this structure helps procurement teams pre-position stock efficiently and avoid the cost of unplanned machine stops caused by parts delays.
Tip Holder (×4), Down Wear Ring C (×1), Distributer Plate (×1), Trail Plate Support (×4) → Replace on condition. Deterioration is gradual; catching it at Tier 1 inspection avoids an unplanned stop.
Horbon maintains production-ready status on Tier 1 wear parts for fast-turnaround orders. Contact us with your upcoming maintenance schedule for pre-order coordination.
Manufacturing Quality Standards
Producing white crusher rotor components for VSI applications imposes tighter manufacturing tolerances than equivalent horizontal impact crusher parts - high rotational speed amplifies the consequence of any mass imbalance or dimensional error.
Port-to-Port Mass Consistency
Matched-weight production of wear plates, trail plates, and tip holders across each set of four. Port-to-port weight variation is controlled within production tolerances to minimize the static balance correction required after installation.
Alloy Grades for VSI Wear Conditions
VSI wear surfaces experience sustained high-velocity sliding abrasion rather than the single-impact loading of hammer-type crushers. Horbon specifies high-chromium white iron and chrome-molybdenum alloy steel for the VSI4000 wear part range - grades that combine the surface hardness needed to resist abrasive sliding with sufficient fracture toughness to survive the incidental impact events that occur in any real crushing application.
Dimensional Verification
All mounting interfaces - taper lock bore, wear plate seating faces, tip holder registers - are verified by CMM inspection. Spectral analysis confirms alloy composition at raw material receipt. Rockwell (HRC) hardness testing is applied to all wear components pre-dispatch. Non-destructive flaw detection covers structural castings.
Bearing House Interface Components
The VSI4000 rotor assembly seats directly onto the Bearing House Assembly (Code: 2104010010). Horbon supplies the full interface component set for customers requiring combined rotor and drivetrain procurement:
| Part Name | Code | Qty |
| Bearing Seat | 3103030224 | 1 |
| Main Shaft | 3103030225 | 1 |
| Bearing | 6201040023 | 2 |
| Wearing Ring | 3103030228 | 1 |
| O-Ring Ø291×3.55 | 6601010007 | 2 |
| Oil Seal Ring | 6602010011 | 3 |
Consolidating rotor assembly and bearing house supply to Horbon removes interface compatibility uncertainty and reduces your VSI4000 spare parts procurement to a single vendor relationship.
Horbon - One Factory for Every Crusher Part You Need
The defining advantage of sourcing your white crusher rotor from Horbon is not simply the rotor itself - it is the procurement consolidation that comes with a full-range crusher parts manufacturer.
Beyond the VSI rotor,
Horbon manufactures gears, bronze bushings, liner bushings, main shafts, springs, oil seals, drive pulleys, fasteners, and structural components for both vertical shaft and horizontal impact crusher platforms. Plants running mixed equipment fleets - VSI units alongside jaw or cone crushers - can consolidate the entire spare parts spend to a single supplier, a single shipping coordination point, and a single technical contact who holds the full equipment context.
This is not a convenience claim. For maintenance managers coordinating parts across multiple machines with multiple scheduled outage windows, the administrative cost of managing five separate supplier relationships - each with its own lead time, quality standard, and logistics chain - is a real overhead that Horbon's full-range supply eliminates.
OEM and Custom Orders
Parts are supplied to OEM specification, unbranded, under your brand, or manufactured to customer drawings. If your VSI model differs from the VSI4000 or requires modified geometry, submit your drawing or sample for custom manufacture assessment.
Export-Ready Operations
FOB and CIF terms. Shanghai and Ningbo ports. Active supply relationships across Southeast Asia, Middle East, Africa, Europe, North and South America, South Asia, and Australia.
Technical and Aftersales Support
7×24 response availability. Installation guides and engineering documentation provided with orders. Quality issues resolved through free part replacement. Remote troubleshooting via video or photo-based communication.
Frequently Asked Questions
Q: Is the white crusher rotor assembly supplied pre-balanced?
A: Static balance is verified on complete rotor assemblies prior to dispatch. The VSI4000 rotor body also incorporates static balance adjustment bolt holes to allow field correction after wear part replacement - essential because changing wear parts always introduces some degree of mass redistribution.
Q: How do I determine which wear parts need replacement without disassembling the full rotor?
A: Most VSI plants use thickness gauges to track wear plate depth at scheduled inspection intervals, cross-referenced against OEM minimum thickness limits. Tip holder condition can be assessed visually for geometric distortion. Distributer plate wear is inferred from diverging wear patterns between ports. Horbon can supply a wear monitoring reference document on request.
Q: What happens if I replace only some of the trail plates rather than all four?
A: Replacing fewer than all four trail plates introduces a mass imbalance between ports. At VSI operating speeds, even small imbalances generate significant vibration loads on the bearing system, accelerating bearing wear and potentially inducing shaft fatigue. Always replace trail plates as a complete matched set.
Q: Can Horbon match parts to a VSI model other than the VSI4000?
A: Yes. Submit your crusher model, part number, or component drawing. We assess geometry against our existing tooling range and quote either from existing tooling or custom manufacture. Our VSI parts capability extends beyond the VSI4000 to other vertical shaft impact configurations.
Q: What is the recommended storage condition for pre-positioned wear part stock?
A: VSI wear parts should be stored in a dry, covered environment away from direct ground contact. Machined mounting interfaces should remain in original packaging until installation to prevent surface damage that could affect fit. Threaded glue (7199010005) has a shelf life and should be checked before use if stored for extended periods.
Q: How quickly can Horbon respond to an emergency wear part requirement?
A: For Tier 1 wear parts held in production-ready stock, we can confirm availability and dispatch timeline within 24 hours of inquiry. For non-stock items, lead time is 15–30 days. We recommend establishing a standing supply arrangement for high-frequency wear parts to eliminate emergency lead time risk entirely.
Place Your White Crusher Rotor Order Today
Horbon delivers factory-direct white crusher rotor assemblies and individual VSI wear parts with the quality documentation, dimensional consistency, and supply reliability that industrial crushing operations require.
Send us your part codes, required quantities, and delivery window - or your crusher model and maintenance schedule if you need help building a complete spare parts list. Our technical team responds within 24 hours.
FOB / CIF · Shanghai & Ningbo | Full BOM Supply | OEM & Custom Orders Accepted
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