One Drawing, Two Hole Sizes, Multiple Irregular Shapes: How a KLINGER C4400 Custom Gasket Went from Inquiry to Delivery
└ Learn how our professional service won the custom insulating gasket order from a Russian client.
One-Minute Overview：
Client: Russian procurement buyer; end user needed the gasket for a maintenance project
Product: Custom KLINGER C4400 gasket (irregular contours + multiple hole sizes, machined to drawing)
Challenges: Only one piece needed — far below the MOQ for custom parts; high machining complexity; non-standard non-asbestos gasket
Key Actions:
1.Quoted a minimum of just 2 pieces (one sheet yields two gaskets）
2.Replied "KLINGER C4400" to confirm 100% genuine European material and ease concerns
3.Give us the drawing, and we can make it
Result: Order closed successfully; client expressed thanks — validating "low MOQ + machining to drawing + genuine material"
Case Background: A One-Piece Custom Gasket for a Russian Maintenance Project
June 8, 2026
A Russian procurement client sent us an inquiry for a custom KLINGER C4400 gasket.
1.The client specified the KLINGER C4400 brand.
2.This was a highly complex custom-machined part — not a standard non-asbestos gasket.
└ Russian buyer's first inquiry for a custom Klinger C4400 insulating gasket for a maintenance project.
At the time, the client only needed one piece, far below our usual minimum order quantity for custom-machined parts. Complex custom machining involves material, labor, and machine setup costs. Still, our company's philosophy is to meet customer needs wherever possible. Since one sheet of material can yield two gaskets, we quoted a minimum order quantity of just two pieces. After that, the client went quiet and didn't follow up on the inquiry.
If the sheet material is your first decision, our overview of KLINGER C4400 insulating gaskets for oil, chemical and power applications explains where this grade is normally specified.
└ We quickly quoted the custom gasket MOQ to the Russian client, but got no reply for a long time.
From Silence to a Firm Order: Why the Buyer Came Back
September 18, 2026
Three months later, the client re-inquired about this gasket. I quoted him the same price as before. My boss even said to me, "This order is definitely coming to you....
└ Three months later, the Russian client sent us another inquiry for the custom Klinger C4400 gasket.
September 28, 2026
Next, the end user asked what material the gasket was made of. The client asking this was clearly concerned about product authenticity. But we use 100% genuine, European-made KLINGER sheet material. So I replied directly: KLINGER C4400 — to put the client at ease.
The asbestos-free requirement is not a minor detail here; we have covered compressed asbestos-free C4400 gaskets separately.
└ We assured the Russian client that the gasket is made from genuine Klinger material to ease their concerns.
October 1, 2026
The client told me directly that the end user had decided to place the order. Communication with this client had been smooth throughout, and he trusted us.
Buyers in Russia comparing material options may also find our PTFE envelope gasket export case from Russia useful.
└ The Russian client decided to order our custom gasket, and the communication was very smooth.
October 8, 2026
We received the client's payment and began preparing to produce the custom gasket.
└ After the Russian client's payment, we prepared materials and scheduled production for the custom gasket.
Machining Irregular Contours and Multiple Hole Sizes to Drawing
During this period, we discussed the machining details with the client continuously. A conventional non-asbestos gasket only needs an inner diameter, outer diameter, and bolt holes — but this client required:
1.Various irregular shapes machined into the gasket
2.Holes of different sizes
3.Custom contours and hole positions per drawing
All of this increased the difficulty — but that's exactly where the value of custom machining capability lies. Our answer to the client was simple: just give us the drawing, and we'll handle the customization and machining. Below are some photos of the finished order:
For a wider view of what drives cost on small custom orders, see 5 hidden costs of sourcing insulating gasket kits from China.
└ Before shipping, we measured the Klinger C4400 custom gasket per the drawing for the Russian client to confirm.
Delivery, Client Feedback and What This Order Proves
October 29, 2026
We sent the order details and photos to the client, and he was very grateful. This order was completed successfully!
Small-batch orders are routine for us; here is a G10 insulation gasket kit order confirmed in 48 hours.
└ Once the Russian client confirmed, we immediately shipped the custom gasket and completed the order successfully.
Conclusion
This order began with a request for a single custom gasket, well below the usual minimum for machined parts. A two-piece MOQ, a direct answer on the sheet material, and machining purely to the client's drawing were enough to turn a quiet inquiry into a completed delivery three months later.
FAQ
Q1. What is the minimum order quantity for insulating gasket kits?
Standard specifications start from one set. Custom sizes, special materials and non-standard drawings are quoted case by case, so the minimum depends on the exact configuration you require.
Q2. What is the usual lead time?
Regular production is normally completed within 15 days. The exact schedule depends on the quantity and material of each item, and stock items can be shipped immediately.
Q3. Which payment terms do you accept?
We work with common international terms such as T/T and L/C. The final terms are confirmed together with the quotation for each order.
Q4. How can I verify that this case is real?
The finished gaskets were shipped with Deppon Logistics. Enter waybill number DPK202845928997 on Deppon's official tracking page to see the dispatch record and delivery status. The email screenshots in this article follow the same timeline, from the first inquiry on June 8 to the delivery confirmation on October 29, 2026.
Xiamen Qishine Industry Co., Ltd.
Romance Xu | Sales Manager
P: +86 (592) 5255-951 | M: 15985833169
E: info@qishine.com | www.qishine.com
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