Mold for plastic clamps

We specialize in custom mold development for plastic clamps, plastic clamp component production, and optional assembly services—not finished product trading. Our molds are engineered to match plastic clamps’ unique needs (e.g., stable clamping force, flexible arm resilience, workpiece compatibility) , with tailored designs, durable material compatibility, and optimized injection molding to deliver reliable plastic clamp parts for industrial fixing, home organization, automotive, and electronics.

1. Custom Mold Structures: Tailored to Plastic Clamp Requirements

Plastic clamps (e.g., industrial workpiece clamps, home cable organizers, automotive interior clamps) demand flexible yet durable clamping arms, precise jaw alignment, and often anti-slip/lockable features—our mold structures are customized to address these key demands:

Cavity & Core: Machined via high-precision CNC machining (tolerance as tight as ±0.01mm) to replicate critical features:

Clamping arm resilience design (arm thickness 0.8–2mm, curvature radius optimized for 10,000+ opening/closing cycles) to maintain consistent clamping force (5–50N, adjustable via arm geometry).

Jaw alignment precision (jaw parallelism tolerance ±0.02mm, tooth/groove depth 0.3–0.8mm) to ensure even pressure on workpieces—prevents slipping or damaging delicate items (e.g., electronic components).

Locking mechanisms (e.g., ratchet teeth with pitch tolerance ±0.01mm, snap-lock grooves) for adjustable clamping force—critical for industrial clamps needing fixed pressure during processing.

Anti-slip textures (on jaw inner surfaces, 0.1–0.2mm raised dots) to enhance friction with workpieces, even for smooth materials like plastic or metal.

Gating System: Designed to avoid weakening clamping arms and jaw precision:

Pin gates (positioned at clamp handles/non-resilient areas) for small-to-medium clamps (e.g., cable organizers)—minimizes weld lines in clamping arms, which would reduce elasticity (a major risk for TPE/PP-based clamps).

Hot runner systems (for large or multi-cavity clamps, e.g., industrial bulk clamps) to maintain consistent melt temperature—reduces material waste by 15–20% and ensures uniform arm thickness (critical for consistent clamping force).

Cooling System: Optimized for clamps’ asymmetric arm-jaw structures:

Targeted cooling for clamping arms (cooling channels 1–2mm from arm surfaces) to preserve elasticity—rapid cooling can make arms brittle, while slow cooling reduces production efficiency; balanced cooling cuts cycle time by 25–35%.

Uniform cooling for jaw teeth/grooves to avoid shrinkage—prevents deformation of anti-slip features, which would compromise workpiece grip.

Ejection System: Calibrated to protect arm resilience and jaw quality:

Ejector pins (arranged at handle/locking areas) with rounded tips to avoid marking clamping arms—ensures no stress concentrations that could cause arm breakage.

Stripper plates (for large clamp frames) to distribute ejection force evenly—prevents bending of clamping arms, maintaining their resilience and clamping force consistency.

2. Suitable Plastic Materials: Matched to Plastic Clamp Applications

Plastic clamps face repeated mechanical stress (opening/closing), workpiece contact, and environmental factors—we select materials based on resilience, durability, and use scenarios:

PP (Polypropylene): Ideal for general-purpose clamps (e.g., home cable organizers, light-duty workpiece clamps). Offers good elasticity (recovers shape after 10,000+ cycles), chemical resistance (to water, mild oils), and cost-effectiveness—suitable for low-load, indoor scenarios (clamping force ≤15N).

TPU (Thermoplastic Polyurethane): Used for flexible, high-grip clamps (e.g., electronic component clamps, delicate item holders). Provides high elasticity (Shore A 50–80) and excellent friction (coefficient 0.4–0.6)—gentle on workpieces while maintaining stable grip, ideal for clamping fragile items like circuit boards or glass.

PA66 (Polyamide 66): Perfect for industrial high-load clamps (e.g., workpiece fixing clamps, automotive engine bay clamps). Boasts high tensile strength (up to 70 MPa) and heat resistance (up to 120°C)—supports clamping force ≤50N and withstands industrial temperatures, suitable for machining or automotive applications.

ABS + TPE Blend: Great for multi-functional clamps (e.g., adjustable home organizers). Combines ABS’s rigid frame (for structural stability) with TPE’s soft jaw surfaces (for anti-slip grip)—balances durability and workpiece protection, ideal for home/office use.

POM (Polyoxymethylene): Suitable for precision-locking clamps (e.g., laboratory sample clamps). Offers high dimensional accuracy (locking mechanism tolerance ±0.005mm) and low friction—ensures smooth, repeatable locking/unlocking, critical for applications needing precise clamping force adjustment.

3. Injection Molding Process: Optimized for Plastic Clamp Quality

Our injection molding process is fine-tuned to meet plastic clamps’ resilience, grip, and precision demands, with key advantages:

Clamping Force Consistency:

Injection parameters (temperature 180–260°C, pressure 60–100 MPa) optimized to enhance material uniformity—no internal voids in clamping arms, ensuring each clamp delivers consistent force (variation ≤10% across batches).

Post-molding elasticity testing (10,000 opening/closing cycles) to confirm arm resilience—clamps retain ≥80% of initial force, avoiding "relaxation" that reduces grip over time.

Jaw Grip & Precision:

Optical inspection of jaw teeth/grooves to ensure anti-slip feature integrity—defect rate for grip surfaces kept below 0.3%, critical for preventing workpiece slippage.

Dimensional checks of locking mechanisms (e.g., ratchet pitch) to ensure smooth adjustment—no jamming or inconsistent force, a common issue with poorly molded locking structures.

Efficient Production:

Multi-cavity molds (32–64 cavities for small clamps, e.g., cable organizers) maximize output—daily production reaches 80,000–120,000 components, meeting high-volume demands.

Automated sorting and force testing—reduces labor costs and ensures only qualified clamps (meeting force/precision standards) are shipped.

Cost Optimization:

Hot runner systems reduce material waste—especially for high-cost materials like TPU or PA66, cutting per-unit cost by 12–18% for large orders.

Integrated molding of locking/grip features—eliminates post-processing (e.g., secondary machining of jaw teeth), reducing production time and costs.

4. Our Services: Beyond Molds—Plastic Clamps & Assembly

We provide end-to-end solutions for plastic clamp production, not just molds:

Plastic Clamp Manufacturing: Produce custom clamps in various sizes (5×10mm to 150×80mm), clamping force ranges (5–50N), and designs (with/without locking mechanisms, single/double jaws). Supports custom colors (RAL/Pantone codes) and surface treatments (anti-static coating for electronic clamps).

Value-Added Assembly: Optional assembly services for clamp sub-assemblies—e.g., attaching rubber jaw pads (for enhanced grip), assembling clamp sets with mounting brackets (for industrial fixing), or integrating springs (for adjustable force). Delivers ready-to-use sub-assemblies, saving your production time.

Custom Design Support: Offer 3D mold design and rapid prototyping (via injection molding or CNC machining). We can produce 30–50 prototype clamps in 2–3 days for you to test clamping force, resilience, and grip performance—optimizing the mold design before mass production.

We are plastic mold maker and can provide custom mold service, we can make injection molds, blow molds, rotational molds and die-casting molds.

For custom injection molds, we can provide professional custom injection molding services. Usually Plastic injection mold manufacturing Molding are manufactured using injection molding technology. The mold materials for injection molds can be chosen from P20, 718, S136, H13 and so on. The mold material reflects the mold life and product material requirements.

For parts that require blow molding production, we can also provide professional custom blow molding services.

Plastic injection mold manufacturing Injection Mould making

1.We communicate product design according to samples/drawings and your requirements.

2.After the product design is confirmed, we carry out the mold design, we provide all kinds of injection molds, blow molds, silicone molds, die-casting molds services.

3.Material procurement, steel cutting and mold basic tools.

4.Mold assembly

5.Mold inspection, tracking and controlling mold processing.

6. We will inform you the date of mold trial and send you the sample inspection report and injection parameters together with the sample.

7.Your instruction and confirmation of shipment.

8.Prepare the mold before packing.

Plastic injection mold manufacturing molding Specification

1. Professional manufacturer, design, production injection mould and stamping mould quality control

2. rich export experience plastic injection mould and stamping mould

3. Reasonable price of design mould

4. Cavities: single or as per your requirements cavity

5. Treatment: S45C Pretreat>25Hrc,And Nitriding

6. Mould Steel: Cavity ,Core and slide: P20 ,2738,2136 available Moldbase :LKM available

7. Standard:DEM ,HUSKY,available

8. Hot runner: according to your demand

9. Life time: >300 Thousand Times

10. Package: Plywood case, anti-rust paint

Mold design：

Information you need to provide us

1. If you have drawings, 2D drawings, 3D drawings (preferably in STEP format).

2. If there are no drawings, you need to provide specific length, width, height and weight information. (It’s best to send us samples)

3. Should the mold be sent to your country, or leave the mold in our factory and we will help you produce the product.

4. Mold material requirements, cavity number requirements (you can tell us about the size of your injection molding machine)

5. Product material requirements and product quantity. (You can tell us about the use of the product and we can give you suggestions)

Transaction process:

Mold testing：

Once the mold is complete, I do a mold test. It usually takes about 3-5 days to complete. We need to assemble the mold, adjust the pressure data of the machine, and try production. We need to check whether there are problems during the normal production of the mold and make modifications.

Product packaging

Packaging according to your needs

1.By air ,it takes 3-7 days for delivery .The goods can be shipped by DHL ,Fedex ,UPS .

2.By sea ,the delivery time is based on your port .

To South East Asian Countries takes about 5-12 days

To Middle east countries takes about 18-25 days

To European countries takes about 20-28 days

To American countries takes about 28-35 days

To Australia takes about 10-15 days

To African countries takes about 30-35 days.

Factory

Video-1: (Factory Video)

Video-2: (Injection Molding)

Video-3: (Blow molding)

Video-4: (Blow molding)

Video-5: (Roll molding)

Customer satisfaction is our most important goal. We focus on communication and cooperation with our customers, always pay attention to their needs and provide quick response and quality customer service. Our injection production mold factory is committed to establishing long-term relationships and ensuring that our customers receive the best after-sales service during the purchase and use of our products, and we will definitely do our best to solve any problems for our customers.

FAQ

1. Who are we?

We are based in Zhejiang, China, start from 2014,sell to North America(30.00%),Southern Europe(10.00%),Northern.

Europe(10.00%),Central America(10.00%),Western Europe(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%). There are total about 51-100 people in our office.

2. How can we guarantee quality?

Always a pre-production sample before mass production;

Always final Inspection before shipment.

3. What can you buy from us?

Mould,Plastic Product, Metal Product,Dental Product,CNC machining.

4. Why should you buy from us not from other suppliers?

Ningbo P&M Plastic Metal Product Co., Ltd. We main do all kinds of 3d design, 3d printing and plastic metal molds tooling and products. We have our own engineer and factory. One-stop supply:3d design - 3d printing - mold making - plastic injection.

5. What services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;

Accepted Payment Currency:USD,EUR;

Accepted Payment Type: T/T,L/C,PayPal,Western Union,Escrow;

Language Spoken:English,Chinese,Spanish,French,Russian.

6. What are the characteristics of your service?

1. Your inquiry related to our products or prices will be replied within 24hours.

2. Welltrained and experienced staffs to answer all your enquiries in fluent English.

3. Offering the support to solve the problem in the application or selling period.

4. Competitive prices based on same quality.

5. Guarantee samples quality same as mass production quality.