Quzhou Horbon Mining Parts Co., Ltd. is one of the leading manufacturers and suppliers of green 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 green crusher rotor made in China here from our factory. Contact us for quotation.
Green Crusher Rotor - VSI Vertical Shaft Impact Crusher Rotor Assembly & Wear Parts
Redefining Efficiency in Vertical Shaft Crushing
Rotor quality is not visible from the outside of a shipping crate. It lives in the alloy composition of a plate hammer, the bore tolerance of a bearing housing, the grain structure of a forged shaft, the port-to-port mass consistency of a VSI wear plate set. These are manufacturing decisions made weeks before the part arrives on site - and they determine whether your next planned maintenance interval runs to schedule or gets cut short by a component that was never built to last.
Where horizontal impact crusher rotors rely on mass and hammer velocity, a VSI rotor functions as an accelerator - feeding material through a high-speed rotating disc that launches feed particles against a stationary anvil ring or rock shelf at controlled velocity. The rotor's internal wear surface condition directly governs product gradation, throughput efficiency, and energy consumption per tonne of output.
At Quzhou Horbon Mining Parts Co., Ltd., we manufacture the complete VSI rotor assembly and every individual wear component at our 13,000 m² production facility in Quzhou, Zhejiang. Whether you're rebuilding a rotor between scheduled maintenance windows or procuring a complete replacement assembly, every part ships from a single source - one factory, one quality system, zero intermediaries.
Product Specifications - VSI4000 4-Port Rotor Assembly
Crusher drawing
| Parameter | Detail |
| Assembly Part Number | 2103030016 |
| Compatible Crusher Model | MP VSI4000 Vertical Shaft Impact Crusher |
| Rotor Type | 4-Port / 4-Channel Rotor Assembly |
| Rotor Diameter | Ø840 mm |
| Rotor Height | 448 mm |
| Shaft Bore - Inner Diameter | Ø390 mm |
| Shaft Bore - Outer Diameter | Ø420 mm |
| Balance Feature | Static Balance Adjustment Bolt Holes |
| Total Components in Assembly | 25 Line Items |
| Key Wear Parts | Top Wear Ring, Trail Plates, Upper & Lower Wear Plates, Tip Holders, Wear Plates, Distributer Plate |
| MOQ | 5 pcs per part |
| Standard Lead Time | 15–30 Days |
| Export Terms | FOB / CIF (Shanghai / Ningbo) |
How a 4-Port VSI Rotor Works
The VSI4000 runs a 4-port (4-channel) rotor - four symmetrically arranged discharge ports through which accelerated material exits the rotor body at high velocity. Feed material enters through the central feed eye, is distributed across the rotor by the distributer plate, and is then channeled through each port where trailing wear plates and tip holders guide the material trajectory as it leaves the rotor.
Each port is lined with a structured wear package: upper and lower wear plates protect the port walls from abrasive contact, trail plates shield the trailing edge of the rotor body, and the tip holder anchors the wear tip that defines the final material exit point. The top and bottom wear rings protect the rotor's upper and lower faces from vertical material recirculation.
This multi-surface wear system means that VSI rotor maintenance is fundamentally a wear part replacement cycle - the rotor body itself rarely fails if the wear package is maintained correctly. Horbon supplies every wear surface component individually, allowing operations to rebuild rotors in-place without committing to full assembly replacement.
Complete Component Breakdown
Rotor Body
The structural core of the green crusher rotor assembly. Precision-cast with four symmetrical port channels, machined shaft bore (Ø390/Ø420 mm), and static balance adjustment bolt holes for field balancing after wear part replacement. The rotor body is the highest-value component in the assembly and typically outlasts multiple sets of wear parts when properly maintained.
Top Wear Ring
Positioned at the upper face of the rotor, the top wear ring intercepts material that circulates above the rotor disc during operation. A direct-impact wear part, it protects the rotor body's upper surface and is one of the first components to require replacement in a high-throughput VSI application.
Down Wear Ring
The lower counterpart to the top wear ring, protecting the rotor body's bottom face from abrasive wear caused by material recirculation beneath the disc. Supplied in C-type geometry for the VSI4000 configuration.
Trail Plates
Four trail plates, one per port, protect the trailing edge of each rotor port from the abrasive jet of material exiting at high velocity. Symmetrically positioned, they must be replaced as a matched set to maintain rotor balance. Available in wear-resistant alloy grades suited to your feed material abrasiveness.
Trail Plate Supports
Structural backing brackets that hold each trail plate in its correct angular position within the rotor port. Maintain port geometry integrity as trail plates wear down.
Upper Wear Plate-B
Lines the upper wall of each rotor port. Categorized as a high-frequency wear item - in abrasive feed applications, upper wear plates typically require replacement at shorter intervals than the rotor body or trail plates.
Lower Wear Plate-B
Mirrors the upper wear plate on the lower port wall surface. Together with the upper wear plate, it creates a protected channel that guides material flow through the rotor port with minimal unprotected rotor body contact.
Tip Holder
The tip holder is the mounting seat for the wear tip at each port exit - the point of highest localized wear intensity in the entire rotor system. Tip holders are precision-machined to maintain consistent tip geometry across all four ports. Asymmetric tip wear between ports indicates a feed distribution problem and should prompt investigation of the distributer plate condition.
Wear Plate
Standard internal wear plates providing additional abrasion protection on rotor body surfaces exposed to material flow paths within the port channels.
Distributer Plate
The distributer plate sits at the center of the rotor, directly beneath the feed entry point. It divides incoming feed evenly across the four port channels, ensuring balanced material flow and preventing differential wear between ports. Uneven feed distribution accelerates selective port wear and can induce rotor imbalance - making distributer plate condition a key maintenance checkpoint.
PFC1415P Horizontal Impact Crusher Diagram
Backplate
Provides rear-surface protection within the rotor assembly, shielding structural surfaces from material returning from the anvil or rock shelf.
Taper Lock Ring
The taper lock system secures the rotor assembly to the main shaft with a precision interference fit - eliminating play between shaft and hub without requiring keyways or set screws that can loosen under vibration. Ensures concentricity and prevents micro-movement that would accelerate shaft bore wear.
Material & Manufacturing Standards
VSI rotor wear parts operate under conditions that differ significantly from horizontal impact crusher components - higher surface velocities, sustained abrasive sliding contact, and critical balance sensitivity that penalizes inconsistent part mass. Horbon's material and process selection reflects these demands:
Alloy Selection for Wear Parts
Chrome-molybdenum alloy steel and high-chromium white iron are the primary material families for VSI wear plates, wear rings, and trail plates. These grades offer the combination of surface hardness and sufficient toughness to resist the chipping failure mode that can occur in pure carbide or ceramic alternatives under impact.
Casting & Dimensional Control
Wear parts are precision-cast to near-net geometry, with machined mounting interfaces ensuring consistent seating across all four ports. Port-to-port weight matching is controlled during production to minimize the balance correction required after wear part installation.
Hardness Verification
Rockwell (HRC) testing is applied to all wear parts before dispatch. Spectral analysis confirms alloy composition at the raw material stage. CMM dimensional inspection covers all critical mounting interfaces.
Non-Destructive Testing
Applied to the rotor body and structural components to detect internal discontinuities before assembly.
Associated Bearing House Components
The VSI4000 rotor assembly interfaces directly with the Bearing House Assembly (Code: 2104010010). For operations requiring full drivetrain rebuild capability, Horbon also supplies:
| Component | 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 |
Sourcing both the rotor assembly and bearing house components from Horbon eliminates interface compatibility risk and consolidates your VSI4000 spare parts procurement onto a single purchase order.
Wear Parts Priority - Maintenance Planning Guide
For procurement and maintenance teams managing VSI rotor service intervals, the following priority classification reflects typical replacement frequency:
High-Frequency Wear Parts
- Upper Wear Plate-B (×4)
- Lower Wear Plate-B (×4)
- Top Wear Ring (×1)
- Trail Plates (×4)
- Wear Plates (×4)
Medium-Frequency Wear Parts
- Tip Holder (×4)
- Down Wear Ring C (×1)
- Distributer Plate (×1)
Structural / Low-Frequency Parts
- Rotor Body (×1)
- Backplate (×1)
- Taper Lock Ring & Taper Lock
Horbon maintains stock of high-frequency wear parts for accelerated delivery. Contact us for current availability before your next scheduled maintenance window.
Why Horbon for Your Green Crusher Rotor Supply
Complete VSI Parts Coverage - Not Just the Rotor
Horbon's manufacturing scope covers the full crusher parts category. Beyond VSI rotor assemblies and wear parts, we produce gears, bushings, bronze sleeves, main shafts, springs, oil seals, pulleys, fasteners, and structural components for horizontal and vertical shaft impact crushers alike. For plant maintenance teams managing both VSI and horizontal impact equipment, Horbon provides a genuine one-stop procurement channel - every crusher part requirement fulfilled by one factory contact, one quality system, and one consolidated shipment.
Factory Direc and OEM & Custom Part Supply
We are a manufacturing operation, not a parts distributor. Pricing reflects factory cost plus direct export margin. For long-term supply relationships or high-volume wear part replenishment programs, framework pricing arrangements are available.
All parts are available unbranded, under OEM arrangement, or manufactured to customer drawings and specifications. If your VSI model differs from the VSI4000, submit your part number or drawing for cross-reference and custom manufacture.
Export Infrastructure & Aftersales & Technical Support
FOB and CIF terms through Shanghai and Ningbo ports. Active export relationships across Southeast Asia, the Middle East, Africa, Europe, the Americas, South Asia, and Australia.
7×24 online technical response. Installation documentation and engineering guidance provided with each order. Quality issues resolved through free part replacement. Video and photo-based technical support available for on-site troubleshooting.
Frequently Asked Questions
Q: What makes a VSI rotor different from a horizontal impact crusher rotor, and does that affect how I source parts?
A: The key difference is function: a VSI rotor accelerates material centrifugally rather than striking it with heavy hammers. This means the VSI wear system is distributed across multiple smaller wear surfaces (wear plates, wear rings, tip holders) rather than concentrated in large plate hammers. For procurement, it means more line items at lower individual weight - but higher combined replacement frequency. Horbon supplies both VSI and horizontal impact crusher rotor components, so mixed-fleet operations can consolidate everything to one supplier.
Q: Can I order individual wear parts rather than a complete rotor assembly?
A: Yes - and this is the typical procurement pattern for VSI rotors. The rotor body is a long-life structural component. Most planned maintenance involves replacing wear plates, wear rings, trail plates, and tip holders on a scheduled cycle. All 25 line items in the VSI4000 4-port rotor assembly are individually available with a 5-piece minimum order quantity.
Q: How do I know when each wear part needs replacement?
A: Wear plate thickness monitoring at each scheduled inspection is the primary method. Trail plate and tip holder condition should be checked simultaneously. Distributer plate wear should be assessed if you observe differential wear between ports - an early sign of uneven feed distribution. We can provide wear limit reference data for each component on request.
Q: How critical is rotor balance, and does Horbon address this in manufacturing?
A: Balance is critical in VSI rotors due to high operating speeds. The VSI4000 rotor body includes static balance adjustment bolt holes for field correction after wear part installation. Horbon controls port-to-port part weight consistency during production to minimize imbalance introduced by wear part replacement. For full rotor assemblies, static balance is verified prior to dispatch.
Q: What is the lead time for VSI4000 wear parts versus a complete rotor assembly?
A: High-frequency wear parts (wear plates, wear rings, trail plates) are typically available from stock or on short production runs. Complete rotor assemblies and rotor body components follow the standard 15–30 day lead time. Contact us with your requirement and timeline for current availability confirmation.
Q: Does Horbon supply the bearing house components for the VSI4000?
A: Yes. The main shaft, bearing seat, bearings, wearing ring, O-rings, and oil seal rings for the VSI4000 Bearing House Assembly are all available from Horbon. Sourcing rotor and bearing house components together simplifies procurement and ensures interface compatibility.
Request a Quote for Green Crusher Rotor Components
Your VSI crusher's performance depends on the condition of its rotor wear package. Horbon provides the complete supply solution - from scheduled wear part replenishment to full rotor assembly replacement - with factory-direct pricing, consistent quality documentation, and global export capability.
Submit your part codes, crusher model, required quantities, and delivery timeline. Our team responds within 24 hours with a competitive factory quotation.
FOB / CIF · Shanghai & Ningbo | Full BOM Supply | OEM & Custom Orders Accepted
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