Ningbo (P&M) Plastic Hardware Products Co. has 15 years of mold making technology for customized Plastic sleeve mold. We have ISO 9001 certificates. We provide professional custom mold service and we are professional plastic mold manufacturer. We have sufficient experience in product raw material selection and mold material selection. We are well aware of the properties of various materials and the advantages and disadvantages of mold design. We will recommend suitable materials and professional design advice for our clients.
At P&M, we specialize in designing and manufacturing high-precision plastic sleeve molds and components for critical mechanical applications. As a direct manufacturer, we provide complete solutions from custom mold design to injection molding, quality testing, and assembly services. We understand that sleeves and bushings must maintain precise dimensions, withstand wear, and perform reliably in demanding environments. Our expertise ensures your sleeve components meet the highest standards of quality and performance.
1. Precision Mold Design for Accurate Sleeve Components
Sleeves require exact engineering to maintain dimensional stability and functional performance. Our molds are designed with specialized features for precision sleeve manufacturing:
Key Mold Features:
Core-Cavity Systems: Precision-machined for perfect concentricity and wall thickness consistency
Ejection Systems: Specialized ejection pins and sleeves for damage-free part removal
Venting Systems: Precision venting to prevent air traps in long, thin-walled sections
Cooling Channels: Optimized cooling for uniform shrinkage and dimensional stability
Slide Actions: For complex features like grooves, flanges, and mounting points
We Design For:
Precision bushings and bearings
Electrical insulation sleeves
Guide rollers and spacers
Protective covers and liners
Mechanical component housings
2. Material Selection for Specific Performance Needs
The right material ensures proper wear resistance, dimensional stability, and environmental performance:
Preferred Materials & Applications:
Nylon (PA6, PA66): Excellent wear resistance and strength - ideal for bearings and bushings
Acetal (POM): Low friction and high dimensional stability - perfect for precision mechanical parts
Polycarbonate (PC): Impact resistance and electrical insulation - great for protective sleeves
PTFE-Filled Compounds: Superior lubricity and chemical resistance - for low-friction applications
PEEK: High temperature and chemical resistance - for demanding environments
UHMW-PE: Excellent wear resistance and low friction - for material handling applications
We help select materials based on wear requirements, temperature range, chemical exposure, and mechanical load demands.
3. Advanced Injection Molding Process
Our manufacturing process ensures every sleeve meets strict dimensional and performance requirements:
Quality Assurance Features:
Scientific Molding: Process parameter optimization for dimensional consistency
Insert Molding: Metal reinforcements and bearings molded in-place
Overmolding: Multiple material combinations for enhanced performance
Automated Production: Robotics for consistent quality and handling
Cleanroom Molding: ISO 7/8 environments for medical and electronic components
Key Advantages:
Consistent wall thickness
Excellent concentricity
Superior surface finish
Tight tolerance maintenance
Cost-effective production
4. Value-Added Services & Assembly
We provide complete manufacturing solutions beyond basic molding:
Additional Services:
CNC Machining: Secondary operations for critical dimensions
Surface Treatment: Lubricity enhancement and coating services
Quality Testing: Dimensional verification and performance testing
Assembly Services: Press-fitting and component assembly
Packaging: Custom packaging solutions
Quality Compliance:
Material certifications
First article inspections
Dimensional validation reports
Statistical process control data
Full traceability documentation
Why Choose Our Sleeve Solutions?
Technical Expertise: Deep knowledge of sleeve and bushing applications
Precision Focus: Tight tolerance capabilities for demanding applications
Material Knowledge: Right material selection for your specific needs
Quality Commitment: Every component thoroughly inspected
Complete Service: From design to delivered finished parts
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.
Product Name |
Plastic sleeve mold |
Pls provide |
2D, 3D, samples, or the size of the multi-angle pictures |
Mould Time |
20-35 Days |
Product time |
7-15 Days |
Mould precision |
+/-0.01mm |
Mould life |
50-100 million shots |
Producing Process |
Audit drawings - mold flow analysis - design validation - Custom Materials - mold processing - core processing - electrode machining - Runner system processing - parts processing and procurement - machining acceptance - cavity surface treatment process - complex mode Die - The entire mold surface coating - Mounting plate - mold sample - sample test - sending samples |
Mould cavity |
One cavity, multi-cavity or same different products be made together |
Mould material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
Runner system |
Hot runner and cold runner |
Base material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
Finish |
Pitting the word, mirror finish, matte surface, striae |
Standard |
HASCO, DME or dependent upon |
Main technology |
Milling, grinding, CNC, EDM, wire cutting, carving, EDM, lathes, surface Finish, etc. |
Software |
CAD,PRO-E,UG Design Time: 1-3 days (normal circumstances) |
Product material |
ABS,PP,PC,PA6,PA66,TPU,POM,PBT,PVC,HIPS,PMMA,TPE,PC/ABS,TPV,TPO,TPR,EVA,HDPE,LDPE,CPVC,PVDF,PPSU.PPS. |
Quality system |
ISO9001:2008 |
Establish time |
20days |
Equipment |
CNC,EDM,Cutting off Machine,plastic machinery,etc plastic suitcase mould zhe jiang |
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)
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.
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.
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.
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.