Frequently Asked Questions

产品 FAQ

产品 FAQ

SUNREX SN Series mobile crushing plants cover a capacity range of 80–350 t/h depending on model and configuration:

• Jaw Crusher Mobile Plants: 100–300 t/h
• Cone Crusher Mobile Plants: 80–250 t/h
• Impact Crusher Mobile Plants: 100–280 t/h
• Screening Mobile Plants: 150–350 t/h
• Sand-Making Mobile Plants: 80–200 t/h

Our mobile crushing plants can process a wide range of materials including:

• Hard rock: granite, basalt, quartzite, river pebble, limestone
• Construction waste: concrete, brick, asphalt
• Minerals: iron ore, copper ore, gold ore, coal

Material hardness (Mohs scale) and abrasiveness determine which crusher type is most suitable. Contact us for a tailored recommendation.

• Jaw Crusher Plant: Primary crushing of hard, abrasive rock. High reduction ratio, suitable for large feed sizes up to 750mm.
• Cone Crusher Plant: Secondary/tertiary crushing of hard rock. Excellent cubicity, suitable for producing high-quality aggregates.
• Impact Crusher Plant: Best for soft to medium-hard materials (limestone, concrete waste). High fines content, ideal for construction recycling.

Yes. All SUNREX SN Series mobile crushing plants carry CE certification (EU Machinery Directive 2006/42/EC) and are manufactured under ISO 9001:2015 quality management system. Certificates are available upon request before purchase.

Yes. SUNREX offers complete mobile crushing and screening lines combining multiple units. A typical two-stage line includes a jaw crusher plant (primary) + cone or impact crusher plant (secondary) + screening plant. We handle the complete engineering design, supply, and commissioning of multi-unit systems.

SUNREX mobile plants are available in three drive configurations:

• Diesel-powered: Integrated Cummins or Volvo diesel genset — fully self-contained, ideal for remote sites
• Electric-powered: External grid connection — lower operating cost where power is available
• Diesel-electric hybrid: Diesel genset + electric drive — flexible for sites with intermittent grid access

Maximum feed size varies by model. Our standard SNE Series jaw crusher mobile plants accept feed sizes from 500mm to 750mm. The vibrating grizzly feeder pre-screens undersize material to maximize throughput and protect the crusher from overloading.

Yes. SUNREX has a dedicated OEM/ODM team that can modify existing models or design completely custom solutions. Custom configurations may include: modified hopper dimensions, extended discharge conveyors, additional dust suppression systems, integrated lighting towers, or bespoke paint and branding. Typical customization projects take 4–8 weeks depending on complexity.

Installation and commissioning timelines depend on site conditions and plant complexity:

• Standard single-unit plant: 3–5 days installation + 2–3 days commissioning
• Two-unit combined line: 5–7 days installation + 3–5 days commissioning
• Multi-unit complete line: 10–15 days installation + 5–7 days commissioning

Commissioning includes operator training, calibration, and a 72-hour performance test run.

SUNREX mobile plants are designed for simplified maintenance with features like centralized lubrication points, quick-change wear parts, and ground-level access to major components. Maintenance intervals:

• Daily: Visual inspection, fluid levels, belt tension
• 250 hours: Change oil, check wear parts, lubricate bearings
• 1000 hours: Replace wear parts (liner plates, blow bars), check hydraulic system
• Annual: Full machine inspection, gearbox oil change, structural integrity check

Typical wear part lifespans (in abrasive limestone conditions):

• Jaw crusher liner plates: 800–1,200 hours
• Cone crusher mantles/bowls: 1,000–1,500 hours
• Impact crusher blow bars: 300–600 hours
• Screening media (mesh): 200–400 hours
• Conveyor belts: 2,000–4,000 hours

SUNREX keeps common wear parts in stock for 48-hour dispatch worldwide.

SUNREX mobile plants are designed for easy transport:

• Tire-type: Towable on public roads at legal dimensions, or loaded onto trucks for long-distance transport
• Crawler-type: Self-propelled on-site; requires low-bed truck for public road transport
• Container-type: Disassembles into 20ft/40ft container modules for international shipping

We provide transport drawings and load calculations with every plant.

All SUNREX mobile plants come with a PLC-based control system (Siemens or ABB) featuring:

• 7-inch touchscreen HMI with intuitive start/stop and parameter adjustment
• Automatic overload protection and alarm system
• Hour meter, production counter, and fuel consumption display
• Emergency stop and safety interlock system

Optional IoT remote monitoring is available — operators and SUNREX technicians can access real-time data, alerts, and performance reports via web portal or mobile app.

Noise levels vary by model and operating conditions. Typical measured levels:

• At 10m distance: 72–78 dB(A) during normal operation
• At crusher point: 85–92 dB(A) — hearing protection required

Optional acoustic enclosures are available for noise-sensitive environments (urban areas, near residential zones).

Dust suppression is standard on all SUNREX plants and includes:

• Water spray bars on feeder, crusher, and discharge conveyors
• Dust collection bags at crusher discharge (for enclosed models)
• Water consumption of approximately 2–4 m³/h depending on material moisture and climate

Optional mist cannons and dedusting systems are available for extremely dry or sensitive environments.

Lead times depend on model and configuration:

• Standard models in stock: 2–4 weeks
• Standard models (factory order): 6–10 weeks
• Custom configurations: 10–16 weeks
• Complete crushing lines: 14–20 weeks

Exact lead times are confirmed at order confirmation. Rush orders may be available with a priority fee.

Standard payment terms for new orders:

• 30% deposit upon order confirmation
• 70% balance before shipment (or against shipping documents)

For orders above USD 500,000, we can arrange letter of credit (L/C) or installment payments. Contact our sales team for tailored payment solutions.

Yes. We welcome clients to visit our manufacturing facility in Shanghai, China. Factory visits can include:

• Tour of production workshops (cutting, welding, assembly)
• Live demonstration of machines in our test yard
• Meeting with engineering and sales teams
• Visit to reference客户 site (if in China)

Contact us at least 2 weeks in advance to arrange your visit. Visa invitation letters can be provided.

Yes. SUNREX has a fleet of rental units available for short-term and medium-term projects. Rental terms:

• Minimum rental period: 1 month
• Monthly rates: 5–8% of equipment value (depending on term)
• Includes: Delivery, setup guidance, basic spare parts
• Purchase option: Rental payments can be partially credited toward purchase

Contact our rental desk for availability and quotes.

Every SUNREX plant includes:

• Operation Manual (English, or client's language)
• Maintenance Manual with wiring diagrams
• Spare Parts Catalogue with part numbers
• CE Declaration of Conformity
• Factory Test Report (signed and stamped)
• Warranty Card

Digital copies (PDF) are provided on USB drive; hard copies are included in the document box on the plant.

There is no minimum order value. However:

• For orders below USD 20,000, we may require full payment upfront
• Spare parts orders below USD 500 may incur a processing fee
• Customized plants typically require a minimum of 1 unit

We serve both single-unit buyers and fleet-scale procurement projects.

Shipping options depend on plant size and destination:

• 20ft / 40ft Container: For container-type plants; most economical for sea freight
• Flat Rack Container: For oversized plants or bulk spare parts
• RORO (Roll-on/Roll-off) vessel: For tire-type plants; cost-effective for nearby ports
• Breakbulk ship: For large crawler-type plants; more expensive but handles oversized loads

We work with established freight forwarders to arrange competitive shipping quotes.

Estimated sea freight times from Shanghai port:

• Southeast Asia: 7–14 days
• Middle East (UAE/Dubai): 18–25 days
• East Africa (Mombasa): 25–30 days
• West Africa: 30–35 days
• South America: 30–45 days
• Europe: 28–35 days

Air freight is available for urgent spare parts (3–5 days worldwide).

SUNREX provides the following documentation to assist with customs clearance:

• Commercial Invoice
• Packing List
• Bill of Lading / Air Waybill
• Certificate of Origin (Form E, F, A, or as required)
• CE Declaration of Conformity
• Technical specifications sheet

Import duties, taxes, and local clearance are the buyer's responsibility. We can recommend customs brokers in major markets.

Beyond the equipment price, budget for:

• Freight: Sea freight typically USD 3,000–15,000 depending on volume and destination
• Insurance: 0.3–0.5% of CIF value
• Import duty: Varies by country (0–30% depending on HTS code; crushing plants typically fall under 8474.20)
• VAT/TAX: varies by country
• Port handling: USD 500–2,000
• inland transport: USD 1,000–5,000 from port to site

Contact us for a DAP (Delivered at Place) quote including all costs.

Yes. Once your plant is shipped, we provide:

• Bill of Lading number for track-and-trace on carrier websites
• Shipping Advisory with vessel name, voyage number, and ETD/ETA
• Arrival Notice 5–7 days before arrival at destination port

For plants with IoT modules, real-time GPS location is available via our monitoring platform.

Site preparation should be completed before plant delivery:

• Level ground or elevated platform capable of supporting plant weight (typically 30–80 tonnes)
• Power supply: Grid connection or generator (capacity depending on plant model, typically 100–400 kVA)
• Water supply: For dust suppression (2–4 m³/h)
• Access road: For truck delivery (12m+ width, 4.5m+ height clearance for container plants)
• Drainage: Proper water runoff management

We provide a detailed Site Preparation Checklist with every order.

Yes. SUNREX offers optional on-site services:

• Installation Supervision: Our engineer visits site to supervise installation (1–2 engineers, 5–10 days depending on plant complexity)
• Full Turnkey Installation: We handle complete installation including civil works (at additional cost)
• Remote Commissioning: Video guidance and remote support for clients who prefer self-installation

Travel, accommodation, and local logistics for on-site engineers are charged separately.

Mobile plants are designed to be placed directly on level ground — no permanent concrete foundation is required (unlike stationary plants). Options:

• Direct placement: On compacted soil, gravel, or asphalt
• Steel frame mats: For softer ground; distributes load evenly
• Shallow concrete pads: Optional for long-term installations on soft ground

Crawler-type plants can self-propel on-site between working positions.

Mobile plants use a combination of methods:

• Tire-type plants: Rear outriggers with hydraulic jacks; no permanent bolting needed. Stabilizer jacks lower for working mode.
• Crawler-type plants: Travel on crawlers; positioned and stabilized with embedded jacks.
• Container-type plants: Can be bolted or left free-standing for temporary setups.

For areas with high winds or seismic activity, anchor kits are available.

Site electrical requirements:

• Power connection: Connect plant to main switchgear via cable (cable size specified in manual)
• Grounding: Earth rod installation for plant chassis grounding (mandatory)
• Optional: Site lighting, emergency stop buttons, remote control wiring

All plant electrical systems are pre-wired and tested at factory. On-site connection is plug-and-play for most models.

TEST TEST TEST TEST

TEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TEST

TEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TEST

TEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TEST

TEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TEST

TEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TEST

TEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TEST

TEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TESTTEST TEST TEST TEST

Standard warranty terms:

• Mechanical components: 12 months from commissioning date, or 18 months from shipping date (whichever comes first)
• Electrical components: 12 months (manufacturer warranty on motors, PLC, sensors)
• Hydraulic system: 12 months on pumps, motors, cylinders
• Chassis/structural frame: 24 months

Wear parts (liner plates, blow bars, screening media) are not covered under standard warranty as they are consumables.

Contact our after-sales team via:

• WhatsApp: +86 139 1822 7571 (preferred for quick support)
• Email: info@sunrexmining.com
• Phone: +86 138 1604 8660

For fastest resolution, include your plant model, serial number, operating hours, and description of the issue. Photos or videos are helpful.

SUNREX maintains parts distribution centers:

• Shanghai HQ: Global shipping, 48h dispatch
• UAE (Dubai): Middle East & Africa, 24–72h dispatch
• Southeast Asia (Malaysia): ASEAN region, 24–48h dispatch

For critical breakdowns, we offer express air freight (3–5 days worldwide) and can ship from nearest stock point.

Yes. SUNREX offers tiered service contracts:

• Bronze: Remote monitoring + quarterly check-in + 10% discount on spare parts
• Silver: 2 preventive site visits/year + priority support + 15% discount on parts
• Gold: Full on-site maintenance + unlimited remote support + 20% discount on parts + annual performance report

Customized SLA contracts are available for fleet operators.

Yes. Operator training is included with every new plant installation:

• On-site training: During commissioning (1–2 days, up to 5 operators)
• Topics: Safe operation, daily checks, basic maintenance, troubleshooting
• Training materials: Printed operation quick guide + digital training video

Additional advanced training courses (3–5 days) are available at our Shanghai facility or via video conference.

For critical failures, SUNREX offers:

• Emergency parts airfreight: 3–5 days worldwide
• Exchange unit: Borrow/rent a replacement unit while yours is repaired
• On-site repair team: Engineer dispatched within 48h for major breakdowns (travel costs charged)

Contact our 24/7 emergency hotline for urgent assistance.

While SUNREX does not provide direct financing, we work with established export credit agencies and banks to facilitate financing for qualified buyers:

• Chinese EXIM bank credit: For buyers in eligible countries
• Equipment leasing: Through partner leasing companies
• Installment payments: Available for orders above USD 200,000 with credit approval

Contact our sales team to discuss financing options for your project.

Estimated operating costs (per hour, for a 150 t/h plant in limestone):

• Fuel / electricity: USD 15–30/h (diesel) or USD 10–20/h (electric)
• Wear parts: USD 3–8/h (amortized)
• Labor: USD 5–15/h (1–2 operators depending on automation level)
• Maintenance: USD 2–5/h (routine service)

Total estimated: USD 25–58/h depending on energy source and local costs.

Yes. Our sales team can provide a project-specific ROI analysis based on:

• Your material type and feed size
• Target capacity and product specifications
• Local aggregate market prices
• Estimated fuel/energy and labor costs
• Project duration and expected utilization rate

Contact us with your project details to receive a tailored financial proposal.