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Services & After-Sales Support

International Certifications & Manufacturing Excellence

Since our founding in 2006, SinoCleansky has adhered to the highest international standards throughout the entire manufacturing process. Our products are exported to over 80 countries and regions across the Middle East, Africa, Asia-Pacific, and Latin America, Europe. Every piece of equipment shipped undergoes rigorous third-party testing and certification to ensure compliance with the regulatory requirements of its destination country.

Manufacturing Advantages

  • Full In-House Production

    SinoCleansky operates complete, self-owned production facilities. All critical processes — from raw material intake to finished product dispatch — are performed in-house:

    1. Steel Sourcing: Exclusively uses custom-grade steel from Tier-1 mills , with material certificates supplied for every batch
    2. Heat Treatment: Fully automated computer-controlled furnaces with ±5°C precision, ensuring consistent mechanical properties across all units
    3. Precision Machining: CNC machining for critical components; valve seats and spindles machined to ±0.01mm tolerance
    4. Welding: Certified welders performing both automated orbital welding and manual TIG welding; welding procedure qualifications per ASME Section IX
    5. Surface Treatment: Stainless steel products undergo standard pickling & passivation plus polishing; carbon steel products receive shot blasting plus three-layer anti-corrosion coating or high-temperature powder curing.

  • Full Material Traceability

    Every equipment unit is assigned a unique serial number that traces back to raw material heat numbers, production teams, inspection records, and factory acceptance test data — delivering full lifecycle traceability.

Quality Inspection Process

SinoCleansky operates a six-tier quality control system covering all product lines. From raw material intake to final dispatch, every unit undergoes more than 20 specialized tests. Our in-house testing center is equipped with X-ray NDT, helium mass spectrometer leak detection, hydrostatic burst testing, and vacuum measurement instruments — ensuring product safety and reliability under extreme operating conditions.

Six-Tier QC System

Tier 1: Incoming Material Inspection

  • Chemical Composition Analysis: Optical emission spectrometer (OES) verifies elemental content against material certificates for every steel batch
  • Mechanical Property Testing: Universal testing machine measures tensile strength, yield strength, and elongation
  • Impact Toughness Test: Charpy impact testing at -40°C / -196°C to verify low-temperature service suitability
  • Visual & Dimensional: Ultrasonic thickness gauge performs spot checks on steel plate thickness deviation

Tier 2: In-Process Quality Control (IPQC)

  • Welding First-Article Inspection: The first welded sample of each shift must pass X-ray NDT before batch production begins
  • Weld Traceability: Each weld seam is logged with welder ID, filler material batch number, and welding parameters
  • Dimensional Patrol Inspection: Critical dimensions are measured and recorded every 2 hours
  • Heat Treatment Monitoring: Computer-logged furnace temperature curves with heat treatment reports for every batch

Tier 3: Pressure Testing

  • Hydrostatic Test: All cylinders and vessels undergo hydrostatic pressure testing at 1.5× working pressure, with a minimum hold time of 30 minutes
  • Tightness Test: Nitrogen pressurization to working pressure followed by underwater leak detection, or high-sensitivity helium mass spectrometer leak testing
  • Burst Test: Batch sampling to verify burst safety margin at 2.5–3.5× working pressure

Tier 4: Vacuum & Insulation Performance (Cryogenic Products)

  • Vacuum Measurement: Interlayer vacuum verified to ≤ 1×10⁻² Pa before dispatch
  • Static Evaporation Rate Test: 24-hour liquid nitrogen static evaporation rate test to confirm insulation performance
  • Thermal Shock Test: Multiple fill-vent LN₂ cycles to verify structural stability under alternating temperatures

Tier 5: Functional & Assembly Inspection

  • Valve Function Test: Each valve is individually tested for opening, closing, regulation, and relief at rated pressure
  • Instrument Calibration: All pressure gauges and level indicators undergo third-party calibration before shipment
  • Final Assembly Check: Comprehensive verification of appearance, piping connections, electrical wiring, and nameplate information

Tier 6: Factory Acceptance Test (FAT)

  • Documentation Completeness: Material certificates, NDT reports, heat treatment records, pressure test reports, and calibration certificates all archived
  • Packaging Inspection: Moisture-proof, shock-proof, and securing solutions verified to meet sea/air freight standards
  • Nameplate Verification: Serial number, model, production date, and standard markings cross-checked against the customer order

Key Testing Equipment

Equipment

Application

Accuracy

Advanced analytics
Optical Emission Spectrometer Steel chemical composition analysis 0.001%
Universal Testing Machine Mechanical property testing ±0.5%
X-Ray NDT Machine Internal weld defect detection IQI sensitivity 2%
Helium Mass Spectrometer Leak Detector Micro-leak detection ≤ 1×10⁻¹⁰ Pa·m³/s
Hydrostatic Test System Pressure strength verification ±0.1 MPa
Vacuum Gauge Interlayer vacuum measurement 1×10⁻⁴ Pa
CMM (Coordinate Measuring Machine) Precision dimensional inspection ±0.001mm

To shoulder social responsibilities with a grateful mind is also SinoCleansky’s belief. We mobilize resources and dedicate effort to make a positive contribution to the sphere we have influence. We will constantly contribute to society!

SinoCleansky will also continue to play our role in the enlargement of the global economy, while always striving to enrich the society within which it operates. We will constantly stay a step ahead in creating new value to support green energy, drive green economy and promote human civilization and progress! 

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Warranty Policy

Standard Warranty Terms
SinoCleansky provides industry-leading warranty coverage on all products. We believe product quality is the foundation of long-term customer relationships.

Standard Warranty Terms

Product Category

Standard Warranty

Core Coverage

Advanced analytics
Vacuum of Microbulk Tank7 yearsHigh-vacuum insulation performance
Jumbo Tubes / Seamless Cylinders 24 months Body material defects, manufacturing process defects
Cryogenic Tanks / Dewars / Tank Containers 36 months Inner vessel weld leaks, vacuum failure, substandard insulation performance
Regulators / Valves / Manifolds 12 months Valve body defects, seal failure, regulation accuracy deviation
Gas Filling Equipment / Pumps / Vaporizers 12 months Equipment manufacturing defects, critical component early failure
Warranty period commences from the date of shipment. Extended warranty terms may be negotiated upon request.

Warranty Coverage

  • During the warranty period, SinoCleansky covers:

    • Free replacement of faulty parts confirmed to result from material or manufacturing defects

    • Remote technical support (video diagnostics, installation guidance)

    • Technical documentation and drawing support

    • Costs attributable to our responsibility for products returned for repair within the warranty period

After-Sales Response Commitment

Response Type

Timeframe

Description

Advanced analytics
First ResponseWithin 24 hoursAcknowledge issue receipt, assign technical engineer
Initial DiagnosisWithin 48 hoursProvide preliminary analysis and recommended solution
Parts Dispatch Within 3 working days after confirmation Warranty replacement parts shipped free of charge (sea/air freight)
On-Site Service (if required) To be agreed Engineer deployed for overseas on-site service; costs quoted and confirmed beforehand

After-Sales Contact

Customers may reach our after-sales service team via:

Email
[email protected]
Phone
+86-10-64709959
WhatsApp
+86-13701016486
Office Hours
Monday–Friday, 8:30–17:30 (Beijing Time, GMT+8)

Consulting Service

SinoCleansky's service system spans the full lifecycle of customer collaboration — from initial inquiry to product delivery and long-term operational support. Our experienced international sales and technical service team communicates fluently in English with customers worldwide.

Pre-sales Consulting — Helping You Make the Right Choice

Technical Consultation & Solution Selection

Our sales engineering team provides:

Needs Analysis: Recommending the best-fit product model based on your gas type (O₂, N₂, Ar, CO₂, LNG, He, H₂, etc.), application scenario (industrial filling / medical gas supply / laboratory / food & beverage), and operating conditions

System Design: For integrated projects such as filling stations, centralized gas supply systems, and pressure-regulating skids, we provide P&ID diagrams, equipment lists, and layout recommendations

Parameter Verification: Assisting in the validation of working pressure, flow rate, media compatibility, and environmental adaptability

Compliance Confirmation: Confirming product certification requirements per destination country regulations (ASME / TPED / DOT / AS / PESO, etc.)

Quotation & Commercial Support

Bilingual (CN/EN) quotations including technical specifications, certification info, packaging plan, and lead time

Assistance with Certificate of Origin (CO), Form E / Form F, and other preferential certificates

Logistics recommendations and freight estimates (FOB / CIF / DDP)

In-sales Support — Transparent & Fully Under Control

Production Progress Tracking

Production Schedule issued within 3 working days after contract confirmation, clearly defining key milestone dates

Customers may request mid-production photo/video walkthroughs to visually monitor work-in-progress status

Written notification at least 10 working days in advance if any schedule deviation occurs due to unforeseen factors

Third-PThird-party Certifiers Coordination

Full support for SGS, BV, TÜV, Lloyd’s, and other third-party inspection agencies for in-factory supervision

Inspection milestones (material incoming / welding / hydrostatic test / final inspection) notified 7 days in advance, ensuring timely customer or third-party attendance

Document Delivery

A complete quality documentation package accompanies every shipment, including:

  • Mill Test Certificate
  • NDT Report
  • Hydrostatic / Tightness Test Report
  • Heat Treatment Curve Report
  • Factory Certificate of Conformity

Installation & Operation Manual (CN/EN)

After-Sales Service — Peace of Mind

Technical Support

24/48-Hour Response: After-sales team responds within 24 hours, with an initial diagnosis provided within 48 hours

Remote Video Guidance: Real-time video diagnostics via WhatsApp / Zoom to assist with fault identification and repair guidance

Technical Document Library: Full suite of product operation videos, maintenance manuals, and FAQs

Spare Parts Supply

Common wear parts maintained in stock year-round; dispatched within 3 working days of order confirmation

Special parts manufactured to order; lead time confirmed on a case-by-case basis

Express air freight available for urgent shipments (DHL / FedEx / dedicated logistics)

On-Site Service

Where project needs dictate, engineers can be dispatched to the customer’s site for installation guidance, equipment commissioning, and operator training

On-site service fees quoted in advance and confirmed in writing by the customer before deployment

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