Terms & Conditions
Effective Date: July 24, 2026
These Terms and Conditions govern your access to and use of screwconveyorchina.com (the “Website”), operated by Zhengzhou Tong Jin Jin Machinery Equipment Co., Ltd. (“TONGJINJIN,” “we,” “us,” or “our”).
This Website is intended primarily for business customers seeking information about screw conveyors, replacement parts, customized components, and related industrial products.
By accessing or using this Website, submitting an inquiry, or requesting a quotation, you agree to these Terms and Conditions. If you do not agree with them, please discontinue use of the Website.
1. Company Information
This Website is owned and operated by:
Zhengzhou Tong Jin Jin Machinery Equipment Co., Ltd.
Address: Xingyang City, Zhengzhou, Henan Province, China
Email: info@tongjinjin.com
Phone / WhatsApp: +86 13592434527
Website: https://www.screwconveyorchina.com
2. Purpose of the Website
The Website provides general information about products and services that may include:
- Screw conveyors
- Cement screw conveyors
- Screw flights
- Hanger bearings
- End bearings
- Shaft couplings
- Gear reducers
- Motors
- Inspection hatches
- Universal joints
- Customized conveyor components
- Replacement parts and technical support
The Website is a product-information and business-inquiry platform. It is not an online retail store, and products cannot normally be purchased directly through the Website.
Content displayed on the Website does not automatically constitute a binding offer, contract, warranty, or guarantee.
3. Business-to-Business Use
We make reasonable efforts to present product information accurately. However, photographs, illustrations, specifications, dimensions, technical descriptions, performance figures, and application examples are provided for general reference unless expressly confirmed in a written quotation, technical agreement, drawing, or sales contract.
Product appearance may vary because of:
- Different models or production batches
- Customer-specific configurations
- Material selection
- Surface treatment
- Motor or gearbox selection
- Inlet and outlet design
- Installation requirements
- Technical improvements
We reserve the right to improve or modify product designs, specifications, materials, or manufacturing methods without updating every previous Website image or description immediately.
Customers should not rely solely on Website photographs when identifying replacement parts.
4. Product Information
We make reasonable efforts to present product information accurately. However, photographs, illustrations, specifications, dimensions, technical descriptions, performance figures, and application examples are provided for general reference unless expressly confirmed in a written quotation, technical agreement, drawing, or sales contract.
Product appearance may vary because of:
- Different models or production batches
- Customer-specific configurations
- Material selection
- Surface treatment
- Motor or gearbox selection
- Inlet and outlet design
- Installation requirements
- Technical improvements
We reserve the right to improve or modify product designs, specifications, materials, or manufacturing methods without updating every previous Website image or description immediately.
Customers should not rely solely on Website photographs when identifying replacement parts.
5. Product Selection and Compatibility
Customers are responsible for providing complete and accurate information needed to evaluate product suitability.
This may include:
- Conveyor diameter and length
- Installation angle
- Material being conveyed
- Required capacity
- Bulk density
- Operating temperature
- Motor power and voltage
- Shaft and spline dimensions
- Flange dimensions
- Rotation direction
- Drawings or equipment photographs
- Existing equipment model
- Operating environment
Recommendations made before receiving complete technical information are preliminary.
Final product suitability should be confirmed through written specifications, approved drawings, samples, or other agreed technical documents.
We are not responsible for incompatibility caused by inaccurate, incomplete, outdated, or misleading information provided by the customer.
6. Inquiries and Requests for Quotation
Submitting an inquiry through the Website, email, WhatsApp, WeChat, telephone, or another communication channel does not create a purchase contract.
A quotation may include:
- Product description
- Model or specification
- Quantity
- Price
- Currency
- Packaging
- Production time
- Delivery terms
- Payment terms
- Quotation validity period
- Warranty terms
- Additional technical conditions
Unless clearly stated otherwise, quotations are subject to technical confirmation, production availability, material costs, exchange-rate changes, freight availability, and final written acceptance.
We may correct clerical, calculation, pricing, or specification errors before an order is formally confirmed.
7. Formation of a Sales Contract
A binding sales contract is formed only when the parties have agreed to the applicable commercial and technical terms through a written sales contract, pro forma invoice, purchase order acceptance, or another written confirmation recognised by both parties.
The sales contract may include documents such as:
- Approved quotation
- Pro forma invoice
- Purchase order
- Technical specification
- Approved drawing
- Packing requirement
- Delivery term
- Payment schedule
- Warranty agreement
Where these Terms and Conditions conflict with a separately signed sales contract, the signed sales contract will take priority for that transaction.
Electronic communications may be used during negotiation and order confirmation, but customers should ensure that final commercial and technical requirements are clearly documented. International legal frameworks commonly recognise electronic communications in commercial transactions, while the exact legal effect depends on the applicable law and agreed contracting process.
8. Prices and Payment
Website pages do not normally display binding product prices.
Prices are determined according to factors such as:
- Product model
- Dimensions
- Material
- Configuration
- Quantity
- Custom manufacturing requirements
- Packaging
- Delivery destination
- Freight method
- Currency
- Market conditions
Payment terms will be stated in the applicable quotation, pro forma invoice, or sales contract.
Customers are responsible for bank charges, import duties, taxes, customs fees, and other costs unless the relevant agreement expressly states otherwise.
We will not begin production or arrange shipment until the agreed payment conditions have been satisfied.
9. Custom and Made-to-Order Products
Many screw conveyors and spare parts are manufactured according to customer-specific dimensions, drawings, samples, operating conditions, or equipment configurations.
Once production of a customized product has started, changes, cancellations, or returns may not be accepted unless we agree otherwise in writing.
Any requested change may affect:
- Price
- Production time
- Material use
- Packaging
- Delivery schedule
- Technical performance
Customers must carefully review and approve relevant drawings, specifications, quantities, rotation directions, dimensions, and connection details before production.
Approval by the customer confirms that the submitted information is suitable for the intended order.
10. Drawings, Samples, and Technical Materials
Customers may provide drawings, photographs, samples, measurements, trademarks, or technical information for product identification or manufacturing.
By providing these materials, the customer confirms that:
- It has the right to provide and use them
- Their use will not violate another party’s rights
- The information is accurate and sufficiently complete
- We may use them to evaluate, quote, manufacture, inspect, or supply the requested products
Unless otherwise agreed in writing, customer materials remain the property of the customer.
Our production drawings, technical solutions, quotations, product structures, photographs, and other proprietary materials may not be copied, disclosed, reproduced, or used for third-party manufacturing without our written permission.
11. Production and Delivery Times
Any production or delivery time stated before order confirmation is an estimate unless expressly guaranteed in writing.
Timelines may be affected by:
- Technical confirmation
- Drawing approval
- Payment receipt
- Material availability
- Production workload
- Public holidays
- Inspection requirements
- Packaging requirements
- Carrier availability
- Customs procedures
- Port congestion
- Weather
- Force majeure events
We will make reasonable efforts to meet agreed schedules but are not responsible for delays caused by circumstances beyond our reasonable control.
12. Shipping, Delivery, and Risk
Shipping responsibilities, costs, insurance, customs clearance, and transfer of risk will be determined by the agreed delivery term stated in the quotation, pro forma invoice, or sales contract.
Where an Incoterms® rule is used, the selected rule and named place should be stated clearly in the transaction documents. Incoterms® rules are internationally used B2B trade terms that allocate responsibilities relating to delivery, cost, and risk between seller and buyer.
Customers are responsible for checking:
- Package quantity
- External packaging condition
- Visible shipping damage
- Product model
- Delivered quantity
- Accompanying documents
Visible loss or damage should be reported to the carrier and to us promptly, with photographs, package details, and shipping documents.
13. Inspection and Acceptance
Customers should inspect products within a reasonable period after delivery.
Any claim concerning:
- Incorrect quantity
- Incorrect model
- Visible manufacturing defect
- Shipping damage
- Major dimensional discrepancy
should be supported by clear evidence, such as photographs, videos, measurements, labels, packing information, and order documents.
Products may be considered accepted if they are installed, modified, used, resold, or not reported within the claim period specified in the relevant sales contract.
The applicable quotation or sales contract may establish a specific inspection and claim period.
14. Installation and Safe Use
Screw conveyors and industrial components must be selected, installed, commissioned, operated, inspected, and maintained by qualified personnel.
The customer is responsible for:
- Proper installation
- Foundations and support structures
- Electrical connections
- Guards and protective devices
- Emergency-stop systems
- Local safety compliance
- Operating procedures
- Maintenance schedules
- Staff training
- Compatibility with surrounding equipment
Customers must not operate equipment without appropriate guards or use products outside the confirmed operating conditions.
General Website content is not a substitute for project-specific engineering, installation, or safety advice.
15. Warranty
Any warranty applicable to a product will be stated in the relevant quotation, sales contract, warranty document, or other written agreement.
Unless otherwise agreed, warranty coverage does not normally include problems caused by:
- Normal wear
- Improper installation
- Incorrect electrical supply
- Overloading
- Unsuitable conveyed material
- Foreign objects
- Inadequate maintenance
- Unauthorized repair or modification
- Incorrect storage
- Corrosion caused by the operating environment
- Use outside approved specifications
- Damage during transport arranged by the customer
- Information or drawings supplied incorrectly by the customer
Wear parts and consumable components may have different warranty conditions from complete equipment.
A warranty claim does not automatically entitle the customer to a refund, replacement of the complete system, compensation for downtime, or reimbursement of third-party costs.
The available remedy will be determined according to the applicable contract and the nature of the confirmed issue.
16. Returns and Cancellations
Products may not be returned without our prior written approval.
Customized, made-to-order, used, installed, altered, damaged, or specially sourced products are generally not eligible for return unless they have a confirmed defect covered by the applicable agreement.
Approved returns may be subject to:
- Inspection
- Restocking costs
- Packaging requirements
- Return freight
- Customs charges
- Depreciation
- Other reasonable expenses
Cancellation conditions will depend on the production stage and the terms of the relevant order.
17. Website Content and Technical Guidance
Website articles, product descriptions, FAQs, diagrams, and technical explanations are provided for general informational purposes.
Although we aim to provide useful and accurate information, Website content may not account for every application, material, installation, or operating environment.
You should obtain project-specific confirmation before making decisions involving:
- Product selection
- Conveyor capacity
- Safety
- Structural support
- Electrical systems
- Installation
- Modification
- Replacement-part compatibility
We do not guarantee that all Website content is free from omissions or minor errors.
18. Intellectual Property
Unless otherwise stated, all Website content is owned by or licensed to Zhengzhou Tong Jin Jin Machinery Equipment Co., Ltd., including:
- Text
- Product photographs
- Graphics
- Drawings
- Page layouts
- Logos
- Videos
- Product descriptions
- Technical content
- Downloadable documents
You may view or print Website content for legitimate internal business evaluation.
You may not reproduce, republish, distribute, sell, modify, scrape, translate for republication, or commercially exploit Website content without prior written permission.
Product names or marks belonging to third parties remain the property of their respective owners.
19. Acceptable Website Use
You must not:
- Use the Website for unlawful purposes
- Attempt to gain unauthorized access
- Introduce malicious code
- Interfere with Website operation
- Collect data through unauthorized automated tools
- Copy substantial Website content
- Misrepresent your identity or authority
- Submit fraudulent inquiries
- Send spam or harmful files
- Use the Website to infringe another party’s rights
We may block access, reject inquiries, or take other appropriate action where misuse is suspected.
20. Third-Party Links and Platforms
The Website may link to third-party services such as WhatsApp, WeChat, YouTube, maps, social media, shipping providers, or other external websites.
These services are operated independently.
We are not responsible for:
- Third-party content
- Availability
- Security
- Privacy practices
- Terms
- Transactions
- Technical failures
Use of an external service is subject to that provider’s own terms and policies.
21. Limitation of Liability
To the fullest extent permitted by applicable law, we will not be liable for indirect, incidental, special, punitive, or consequential losses arising from use of the Website or reliance on general Website content.
Such losses may include:
- Lost profits
- Lost production
- Business interruption
- Loss of opportunity
- Loss of data
- Third-party claims
- Removal or reinstallation costs
- Damage to surrounding machinery
Any liability arising from an actual product transaction will be governed by the applicable quotation, sales contract, warranty terms, and mandatory law.
Nothing in these Terms excludes liability that cannot legally be excluded or limited.
22. Indemnification
You agree to be responsible for losses, claims, costs, or liabilities arising from:
- Your unlawful use of the Website
- Incorrect technical information supplied by you
- Infringing drawings or materials supplied by you
- Unauthorized modification or misuse of products
- Violation of these Terms
- Violation of another party’s rights
This provision applies only to the extent permitted by applicable law.
23. Force Majeure
We will not be responsible for failure or delay caused by events beyond our reasonable control, including:
- Natural disasters
- Fire
- Flood
- Epidemic or public-health restrictions
- War
- Civil disturbance
- Government action
- Export or import restrictions
- Port closure
- Carrier disruption
- Power failure
- Material shortages
- Labour disruption
- Cyberattack
- Major equipment failure
Where possible, we will inform the affected customer and make reasonable efforts to reduce the effect of the event.
24. Export, Import, and Legal Compliance
Customers are responsible for confirming that products may lawfully be imported, installed, and used in the destination country.
Unless otherwise agreed, the customer is responsible for:
- Import licences
- Customs clearance
- Duties and taxes
- Local certification
- Installation permits
- Local safety requirements
- End-use restrictions
We may reject or suspend a transaction where fulfilling it could violate applicable export controls, sanctions, customs rules, or other legal obligations.
25. Privacy and Cookies
Our collection and use of personal information are described in our Privacy Policy.
Our use of cookies and related technologies is described in our Cookie Policy.
These policies form part of the terms governing your use of the Website.
26. Governing Law and Dispute Resolution
Unless a separate written contract states otherwise, these Terms and Conditions are governed by the laws of the People’s Republic of China.
The PRC Civil Code contains the principal statutory framework governing civil and contractual relationships in China.
The parties should first attempt to resolve any dispute through good-faith negotiation.
If a dispute cannot be resolved through negotiation, it may be submitted to a competent court at the location of our registered business, unless the parties have agreed in writing to another court, arbitration institution, governing law, or dispute-resolution method.
For an international order, the governing law and dispute-resolution clause in the signed sales contract will take priority over this Website provision.
27. Severability
If any provision of these Terms is found to be unlawful, invalid, or unenforceable, the remaining provisions will continue in effect to the extent permitted by law.
An invalid provision may be interpreted or replaced in a manner that most closely reflects its intended commercial purpose.
28. No Waiver
Failure to enforce any provision of these Terms does not constitute a waiver of that provision or of the right to enforce it later.
A waiver is effective only when confirmed in writing by an authorised representative.
29. Changes to These Terms
We may update these Terms and Conditions to reflect changes in:
- Website functions
- Products
- Business practices
- Technology
- Security
- Applicable law
The revised Terms will become effective when published on this page with an updated effective date.
Continued use of the Website after an update constitutes acceptance of the revised Terms to the extent permitted by law.
Changes to an already confirmed order will be governed by the applicable sales contract rather than a later Website update.
30. Contact Us
Questions about these Terms and Conditions may be directed to:
Zhengzhou Tong Jin Jin Machinery Equipment Co., Ltd.
Website:
https://www.screwconveyorchina.com
Email:
info@tongjinjin.com
Phone / WhatsApp:
+86 13592434527
Address:
Xingyang City, Zhengzhou, Henan Province, China
