Product Description
High Security Casting Door Chain Stainless Steel
Product Description
| Product name | High Security Casting Door Chain Stainless Steel |
| Product Model | DDDG002 |
| Material | Stainless steel / zinc alloy |
| Finish | SS,PSS,PVD,SNP,SCP,AB,AC |
| Accessories | screws  |
| Suitable for | Wooden door, Metal door, steel door etc. |
Packaging & Shipping
High Security Casting Door Chain Stainless Steel
| MOQÂ | 500 PCS |
| Package | 1 PC  / polybag / inner box in Standard export carton |
| Sample time | 3-5 working days |
| Production lead time | 20-25 days |
| Shipping Port | HangZhou , China  / HangZhou , China . |
Testing Quality
Company Information
Our Services
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D&D Hardware offers a combination of products to suite the individual Building, meeting not only the Requirements for Design and Function, but also the desired Budget.
More door hardware items include:
1. Stainless Steel Door Hinge- UL Listed & Fire Rated & CE Certificate
2. Door Locks – CEÂ EN12209 Fire RatedÂ
3. Stainless Steel Door Handles- BS EN 1906
4. Panic Exit Device- UL Listed & CE Certificate
5. Door Controls – CE BS EN 1154
6. Glass Hardware / Bathroom Hardware
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FAQ
High Security Casting Door Chain Stainless Steel
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Q:What certificate you have?
A:We have CE and UL certificate, all our product design follow up the international standard, such as the EN/CE, UL, ANSI standard.
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QÂ : Â Do you accept OEM or ODM?
A: Â Yes, We are professional in OEM and ODM now , Cooperating with famous brands for OEM & ODM.
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Q:Do you have quality system?
A:Yes, we have. We have set up our quality system and well controlled our production quality as per
the instructions and requirements in it and well-control each procedure throughout the mass-production.
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Q: Â What’s the guarantee of your products?
AÂ : Â 5 Year Mechanical Guarantee.Â
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Q: Â What’s the stainless steel Grade you are working now?
A:Â Â We are working mostly in SUS304 and SUS316, some items can be SUS201 as well.
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Q: Â Could you send me sample before I place an order?
A: Yes, offer 3 pcs free samples for your evaluation, you provide the Courier account for freight collect.
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Q: Â Are your company factory or trading company?
A: Â We are a SGS Audit factory, over 10 years manufacturing experience in architectural hardware.
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Q:What is your payment terms ?
A:T/T, D/P, Western Union, L/C.
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Q:Â How can I get the latest prices?
A:  Send requirements to us by mail or calling , we will reply you in 24 hours. D&D offer not only door hardware product but also Door Opening Solution.
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| Material: | Stainless Steel |
|---|---|
| Type: | Door Chain |
| Style: | Modern |
| Samples: |
US$ 6/Piece
1 Piece(Min.Order) | Order Sample |
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| Customization: |
Available
| Customized Request |
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.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How do cast chains perform in dusty or dirty environments?
Cast chains are well-suited for use in dusty or dirty environments due to their design and materials. They offer several features that enable them to perform effectively in such conditions:
- Sealed Design: Many cast chains have a sealed or encapsulated design, which helps prevent dust, dirt, and debris from entering the chain’s internal components. This feature minimizes the buildup of contaminants and reduces the risk of chain jamming or failure.
- Self-Lubrication: Some cast chains come with built-in lubrication systems that distribute lubricant evenly along the chain’s articulation points. This self-lubrication feature helps to maintain smooth operation even in dusty or dirty environments, as it reduces friction and wear.
- Wear Resistance: Cast chains are typically made from materials with excellent wear resistance, ensuring they can withstand the abrasive effects of dust and debris without significant degradation in performance.
- Regular Maintenance: While cast chains are designed to handle dirty environments, regular maintenance is still essential. Periodic cleaning and inspection help to remove any accumulated debris and ensure that the chain remains in optimal working condition.
Overall, cast chains are a reliable choice for dusty or dirty environments, such as mining, construction, and agricultural operations. Their ability to resist contamination, self-lubricate, and maintain their structural integrity makes them well-adapted for material handling tasks in challenging settings.

Can cast chains be used in food processing or pharmaceutical industries?
Cast chains are not typically recommended for direct use in food processing or pharmaceutical industries, especially in applications where there is direct contact with consumable products. The primary reason for this is that cast chains are often made from materials such as carbon steel, which may not meet the strict hygiene and sanitation standards required in these industries.
Instead, industries like food processing and pharmaceuticals typically utilize specialized chains made from stainless steel or other corrosion-resistant materials that are specifically designed to meet the stringent hygiene and cleanliness requirements. Stainless steel chains offer better resistance to rust, corrosion, and chemical exposure, making them suitable for applications where cleanliness and product safety are paramount.
In some cases, cast chains may be used in secondary applications, away from direct product contact, such as handling non-consumable materials or in general material handling within the facility. However, even in these cases, industries often prefer to use chains designed for hygienic environments to ensure the highest level of product safety and quality.
When considering chain options for food processing, pharmaceutical, or any other industries with strict cleanliness requirements, it is essential to consult with chain manufacturers or industry experts to select chains that comply with relevant regulations and provide the necessary performance characteristics.

How do you select the right size and strength for a cast chain?
Selecting the right size and strength for a cast chain involves considering several factors to ensure optimal performance and safety in a specific application.
1. **Load Requirements:** Determine the maximum load the chain will be subjected to during operation. This includes both the static load and any dynamic or shock loads that may occur. The chain’s strength should exceed the maximum anticipated load to avoid premature wear or failure.
2. **Speed and RPM:** Consider the operating speed and the number of revolutions per minute (RPM) the chain will experience. Higher speeds and RPMs can lead to increased wear, so the chain must be capable of handling the demands of the application.
3. **Chain Pitch:** Select the appropriate chain pitch, which is the distance between the center of two consecutive pins. The pitch should match the sprocket’s pitch diameter to ensure smooth engagement and minimal wear.
4. **Environmental Factors:** Evaluate the operating environment, including temperature, humidity, and the presence of corrosive substances or contaminants. Choose a cast chain with the appropriate material and surface treatment to withstand the environmental conditions.
5. **Service Life Expectancy:** Consider the desired service life of the chain. A longer service life may require a higher-strength chain with superior wear resistance.
6. **Safety Factors:** Apply appropriate safety factors to account for uncertainties and variations in the operating conditions. This helps ensure the chain’s durability and reliability under unexpected or harsh conditions.
7. **Consult Manufacturer’s Guidelines:** Always refer to the manufacturer’s guidelines, catalogs, or technical specifications to select the right cast chain for a specific application. Manufacturers can provide valuable insights and recommendations based on their expertise and knowledge of the chain’s capabilities.
By carefully considering these factors and consulting with chain manufacturers or experts, you can select the right size and strength of a cast chain that will meet the requirements of your industrial application and provide long-lasting performance.


editor by CX 2024-03-01