Custom Manufacturing & Precision Machining Company

Plastic Injection Molding Factory | Custom Mold Tooling Maker | Precision Metal Part Manufacturing

On-Demand Manufacturing2025-07-09T05:53:45+00:00

On-Demand Manufacturing

Need custom parts? We deliver exactly what you need, exactly when you need it—with a full range of manufacturing processes to back it up. Injection molding, CNC machining, sheet metal fabrication, 3D printing, vacuum casting, aluminum extrusion, die casting—our on-demand service bends to your project.
Here’s what sets us apart:
  • Your timeline, our pace
  • Flexible scaling (no minimums)
  • Spec-matched precision

What is On-Demand Manufacturing?

Simply put, on-demand manufacturing flips traditional production on its head. Instead of churning out large batches upfront and leaving you with piles of inventory to store (and risk wasting), we make exactly what you need—only when you place an order.
For you, that means:

  • Less waste: No overproduction of items that might never sell. We build to your exact quantity, so materials and resources go where they’re actually needed.

  • No tied-up cash in inventory: Skip the cost of storing extra stock. You pay for what you order, freeing up funds for other parts of your business.

  • Customization that keeps up with you: Need a last-minute tweak to designs, materials, or specs? On-demand lets you adjust easily—no being locked into a huge pre-made batch.

  • Get products faster: Without the wait for mass production runs, we turn around orders quicker. Whether it’s a small test batch or a sudden spike in demand, you get what you need when you need it.

It’s manufacturing that bends to your schedule, your needs, and your bottom line.

Why Choose On-Demand Manufacturing?

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Free Up Cash Flow, Skip Inventory Headaches

No more tying up funds in piles of pre-made parts that sit in warehouses. With on-demand, you order exactly what you need—whether 50 pieces or 5,000—so your money stays where it works hardest: growing your business, not gathering dust in storage.

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Speed to Market That Keeps Up With Your Ideas

Got a new design, seasonal tweak, or sudden market opportunity? Traditional manufacturing forces you to wait for big production runs. We cut that timeline: turn prototypes into finished parts fast, and get new products in front of customers before the moment passes.

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Test, Learn, and Reduce Risk

Not sure if a new part design will click? With on-demand, you can start small—order a test batch to validate demand, gather feedback, and refine details—without betting big on unproven ideas. It’s low-risk experimentation that lets you nail the final product.

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Flexibility to Adapt When Needs Shift

Market demands change: a client ups their order, a design needs a last-minute tweak, or a project scales back. On-demand manufacturing bends with you—adjust quantities, tweak specs, or shift timelines without the hassle of reworking huge pre-made batches. Your production keeps pace with your reality.

Need a quote for your custom parts?

Get yours in 24 hours—no obligations, just fast, tailored numbers.

Our Services for On-Demand Production

Plastic Injection Molding

Need custom plastic parts? Our injection molding gets the job done. We heat resin, inject it into precision molds under high pressure, and let it cool—turning out parts that are precise, consistent, and ready for use. Whether you need a small batch or 100,000+ units, it’s reliable for tight-tolerance work.

Key Capabilities and Standards:

Specification Detail
Mold cavity precision ±0.05 mm
Dimensional repeatability ±0.1 mm between parts
Typical lead time Within 15 working days
Suitable production volume From 1 to 100,000+ cycles
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CNC Machining

Need custom parts with tight precision? Our CNC machining has you covered. We use computer-controlled tools to shape materials—whether you’re making small-batch prototypes or large production runs—so every part comes out consistent, accurate, and ready to use.

Capabilities and Tolerances:

Specification Standard Tolerance
Maximum part dimensions 950 × 550 × 480 mm (37.0 × 21.5 × 18.5 in)
Tolerance – hole diameter (non-reamed) ±0.025 mm (±0.001 in)
Tolerance – shaft diameter ±0.025 mm (±0.001 in)
Tolerance – linear dimension ±0.025 mm (±0.001 in)

Sheet Metal Fabrication

Need strong, durable metal parts made from flat sheets? Our sheet metal fabrication gets it done. We take aluminum, steel, and other flat metals, then cut, bend, punch, and assemble them into finished components—sturdy, structurally solid, and built to last.

Tolerances and Dimensional Standards:

Dimension Type Tolerance
Hole-to-hole / edge-to-edge / edge-to-hole (same plane) ±0.005 in
Bend to hole or edge (same surface) ±0.010 in
Features across bends or multiple surfaces ±0.030 in
Bend angle ±1°
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3D Printing

Need complex-shaped parts fast, without lots of tooling? Our 3D printing delivers. We build parts layer by layer from your CAD model—quick, with minimal setup, and perfect for tricky geometries that are hard to make with other methods.

General Capabilities and Specifications:

Feature Specification
Build volume limits FDM: 900 × 600 × 900 mmSLA: up to 1500 × 750 × 500 mmSLS: 750 × 550 × 550 mm
Dimensional accuracy ±0.1 mm
Wall thickness minimum FDM: ±1.0 mmSLA: ±0.2 mmSLS: ±0.7 mm
Lead time Typically within 7 business days for quantities up to 50 parts
Scalable production Suitable for batches exceeding 50 parts

Vacuum Casting

Need detailed, high-quality parts for small batches or prototypes? Our vacuum casting gets it done. We use vacuum pressure to pull resin into silicone molds, creating complex shapes with crisp details—no heavy tooling required, perfect for tight runs.

Key Capabilities and Specifications:

Specification Detail
Tolerance (dimensional) ±0.05 mm
Build size (max range) ±0.025 mm (±0.001 in)
Typical layer thickness Between 1.5 mm and 2.5 mm
Turnaround time Up to 20 parts delivered in 15 days or less
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Aluminum Extrusion

Need complex aluminum parts with consistent cross-sections? Our aluminum extrusion delivers. We push aluminum through shaped dies to form detailed profiles, then refine them to fit your needs—strong, uniform, and ready for use.

Capabilities and Details:

Specification Description
Post-processing options Includes CNC cutting, threading, slotting, face milling, and more
Press capacity Ranges from 450 tons to 3000 tons
Lead times Approximately 2 weeks for smaller molds, 4 weeks for larger ones
Minimum order quantity 0.5 tons for small machines, 1 ton of 6063 aluminum for larger machines

Die Casting

Need detailed, accurate metal parts in large quantities? Die casting is a manufacturing technique where liquid metal is forced into steel molds using high pressure, allowing for the creation of detailed and accurate metal components. It’s especially suited for producing large quantities of parts with uniform quality.

Key Specifications and Capabilities:

Specification Detail
Dimensional accuracy ±0.05 mm
Maximum part size 300 mm × 650 mm
Typical layer thickness 1.5 mm to 2.5 mm
Lead time Up to 20 parts within 15 days
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How It Works: Our On-Demand Manufacturing Process

Step 1

Share Your Needs

Tell us what you need: part designs (3D, 2D, or even a sketch), materials, quantity, and when you need it. Our team checks it over within 24 hours.

  • What you’ll need: Your design files (3D, 2D, or sketches), material preference, quantity, and timeline details

  • What we’ll provide: A confirmation within 24 hours, plus a checklist if you need help filling in gaps

Step 2

We Craft a Custom Plan

We’ll suggest the best process (like injection molding or CNC), share a clear quote, and lock in timelines. Need changes? We’ll tweak until you are satisfied.

  • What you’ll need: Your thoughts on our first plan

  • What we’ll provide: A tailored process pick, detailed costs, and a firm timeline

Step 3

Produce Exactly What You Ordered

We build exactly what you ordered—no extra parts. We use precise tools to hit every spec, and you can track progress in real time, so you always know what’s happening.

  • What you’ll need: Your final confirmation on the plan

  • What we’ll provide: A live production tracker, plus material certificates (like safety or quality docs)

Step 4

Rigorous Quality Checks

Every part gets strict testing (like dimension checks or strength tests) to meet your standards. We don’t ship until it’s perfect.

  • What you’ll need: Any specific quality rules (like “Tolerance ±0.02mm”)

  • What we’ll provide: A full quality report with test results and photos

Step 5

Deliver On Time

Your order shows up when we say it will—small batches in days, larger runs on schedule. No delays, no last-minute issues.

  • What you’ll need: Your delivery address

  • What we’ll provide: A tracking number, packing list, and confirmation once it arrives

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Frequently Asked Questions

Can I combine multiple processes in one project with KingStar Mold?2025-07-09T04:54:28+00:00

Yep, we handle both scenarios:
First, mixing processes across different parts. Like, say you need a CNC-machined metal base, plus injection-molded plastic covers, or sheet metal brackets paired with 3D-printed bits. We can make each part with the best method for it.
Second, using multiple processes on a single part. For example, components produced by vacuum casting need to undergo further CNC processing to achieve some complex features. Or the plastic components produced by 3D printing may require surface treatment; Or you might need to add your own unique logo, brand name, etc. to the components.
All of this happens in-house. No need to juggle multiple suppliers. Whether it’s different parts with different methods, or one part needing several steps, we make sure everything fits right and saves you coordination time.

How do I choose the right manufacturing process for my part?2025-07-09T04:56:27+00:00

It depends on what you need: your part’s job, the material it requires, how many you need, and when you need them. For example:

High-volume plastic parts? Injection molding works best.
Tight-tolerance metal parts? Go with CNC machining.
Quick prototypes? 3D printing is ideal.
Sturdy enclosures? Sheet metal fabrication fits.

Our engineers can look at your design and point you to the fastest, most cost-effective option for your goals.

Why choose KingStar Mold for multi-process, on-demand manufacturing?2025-07-09T04:59:21+00:00

We’re the one place to get it all—no outsourcing, no dealing with multiple suppliers. All the work (injection molding, CNC, sheet metal, 3D printing, you name it) happens right here in our facility. That means:
  • Project management is simpler: You’ve got one person to talk to, no need to chase down different teams.
  • Timelines are faster: Our in-house tools and teams cut down on delays, so you get your parts sooner.
  • More bang for your buck: We price direct from the factory—no extra fees—and we’ll pick the cheapest (but still solid) method for each part.
  • Quality stays consistent: We check every step closely, so all parts match your specs, no matter the process.
  • Help when you need it: Our engineers are around 24/7—for design tips, updates, or last-minute fixes.
We’re not just making parts—we’re here to help you grow, and do it quickly.
Are aluminum extrusion services available with custom dies?2025-05-22T01:29:18+00:00

Absolutely. We offer custom aluminum extrusion services using your profile or we can help design one from scratch. Custom dies can be created quickly, and we also offer post-processing like CNC, anodizing, and assembly.

What file formats do you accept for sheet metal fabrication or CNC projects?2025-05-22T01:28:37+00:00

We accept most CAD formats including STEP, IGES, STL, and DWG. If you’re unsure, our engineers at KingStar Mold can help convert or adjust files to ensure compatibility and manufacturability before production begins.

How Does CNC Machining Compare with 3D Printing for Prototyping?2025-05-22T01:28:09+00:00

When it comes to prototyping, choosing between CNC machining and 3D printing isn’t always straightforward. Both technologies offer powerful advantages depending on your design goals, material requirements, and timeline. Below is a breakdown of how they compare across key criteria to help you make an informed decision for your next prototype.

1. Speed and Turnaround Time

• 3D Printing: Fast for Initial Concepts
3D printing excels at rapidly producing initial design iterations. For simple parts, printing can take just a few hours, making it ideal for fast-turnaround concepts and fit-check models.

• CNC Machining: Quicker for Final-Stage Prototypes
CNC machining might require longer setup, especially for complex geometries, but once programmed, it can rapidly produce accurate and high-strength parts. It shines when you’re prototyping parts close to production quality.

2. Material Options

• 3D Printing: Limited but Expanding
Most 3D printers work with polymers like PLA, ABS, nylon, and TPU. Higher-end printers can handle resin, carbon-fiber-reinforced filament, or even metal (in industrial settings), but these are less accessible and more costly.

• CNC Machining: Broad Material Compatibility
CNC machines can process nearly any solid material—metals (aluminum, steel, brass), plastics (POM, PC, ABS), wood, foam, composites, and more. This makes it ideal for prototyping using the exact material you plan to use in production.

3. Precision and Tolerance

• 3D Printing: Good for General Fit and Form
Standard 3D printers typically offer tolerances in the range of ±0.1 to ±0.3 mm. This is fine for early-stage prototypes, especially visual models, but less suitable for functional assemblies or high-precision components.

• CNC Machining: High Dimensional Accuracy
CNC is the clear winner when tight tolerances are critical. Standard tolerances of ±0.05 mm (or better) are easily achievable, which is essential for parts requiring mechanical performance or accurate fits.

4. Surface Finish and Detail

• 3D Printing: Layer Lines and Post-Processing Needed
Printed parts often have visible layer lines and may require sanding, polishing, or coating for a smooth finish. Resin-based printers offer better detail but still lag behind CNC in surface quality.

• CNC Machining: Superior Surface Finish
CNC-machined parts generally come off the machine with a smoother finish. Depending on the tooling and material, you can achieve near-production-level surfaces without extra post-processing.

5. Complexity of Geometry

• 3D Printing: Excellent for Intricate or Organic Shapes
Additive manufacturing allows you to print complex, internal, and organic geometries that are nearly impossible to machine. Lattice structures, undercuts, and hollow features are easy to build with no tooling constraints.

• CNC Machining: Limited by Tool Access
While multi-axis CNC machines can handle a lot, parts with deep internal features or intricate curves may require special tooling, complex setups, or may not be machinable at all.

6. Cost Considerations

• 3D Printing: Cost-Effective for Low Volume
For low-quantity prototypes, especially for visual and form testing, 3D printing is more affordable. No tooling is required, and materials are generally inexpensive for common polymers.

• CNC Machining: More Costly per Part, But Valuable for Accuracy
CNC can be more expensive due to programming time, machine time, and tool wear, especially for complex parts. However, when prototyping for functional testing or preparing for mass production, CNC is often the better investment.

7. Scalability Toward Production

• 3D Printing: Great for Concept Phase
3D printing is ideal for early concept testing, quick user feedback, and presentation models. But transitioning to production often requires different materials and processes.

• CNC Machining: Bridges Prototyping and Production
CNC can produce prototypes that closely mimic the performance and durability of final production parts. It’s a perfect fit for low-volume production or as a bridge before tooling is finalized.

8. Which Should You Choose?

Here’s a simplified guideline:

Goal Recommended Method
Fast, low-cost concept model 3D Printing
Complex internal geometry 3D Printing
Functional prototype with real materials CNC Machining
Tight tolerances or mechanical assembly CNC Machining
Aesthetic prototype with simple shapes Either (depends on finish needed)
Prototype similar to final production part CNC Machining
What materials are available for injection molding at KingStar Mold?2025-05-22T01:24:18+00:00

At KingStar Mold, we offer a wide range of thermoplastic and thermoset materials to meet the specific requirements of your project—whether it’s strength, flexibility, temperature resistance, or chemical durability. Some of the most commonly used materials include:

• ABS (Acrylonitrile Butadiene Styrene) – Excellent for impact resistance and dimensional stability, ideal for automotive and consumer products
• Polypropylene (PP) – Lightweight, fatigue-resistant, and great for living hinges, containers, and medical components
• Polycarbonate (PC) – High-impact strength and optical clarity, often used in safety and electronic parts
• Nylon (PA6, PA66) – Strong, wear-resistant, and ideal for mechanical parts like gears and housings
• POM (Acetal/Delrin) – Known for its low friction and high stiffness, suitable for precision engineering applications
• TPU (Thermoplastic Polyurethane) – Offers flexibility, abrasion resistance, and is often used for seals and flexible parts
• Custom compounds and filled materials – Including glass-filled nylon, flame-retardant grades, UV-resistant blends, and more

We also work with medical-grade, food-safe, and UV-stabilized resins when needed. To explore the full list of options and learn which material suits your part best, check out our injection molding materials.

What is on-demand manufacturing, and how does it benefit my business?2025-07-09T05:26:08+00:00

On-demand manufacturing, put simply, is making parts exactly when you need them—no more, no less. A lot of folks think, “Isn’t that just how all manufacturing works?” But nope, there’s a big difference.
Traditional production usually means cranking out huge batches upfront, piling them in warehouses, and crossing your fingers you’ll sell or use them later. If your design changes? Or demand drops? You’re stuck with a bunch of parts you can’t use—wasting money and space.
On-demand flips that. We make what you need, when you need it, based on your current plans—not guesses. Here’s why that matters for your business:
  • Cash stays in your pocket: You don’t tie up money in parts that might sit unused. No more paying to make or store stuff that could become obsolete.
  • You can pivot fast: If your design needs tweaks (which happens all the time, especially for startups or R&D), you don’t have a warehouse full of old parts going to waste. Just adjust and make the new version.
  • Mix and match as you go: Need 10 3D-printed prototypes this week? Then 500 CNC-machined parts next month? No problem. We switch methods whenever your project needs it—no being stuck with one tool or process.
  • No “minimum order” headaches: Order 5 parts or 500—no pressure to buy more than you need just to hit some arbitrary number.
  • One partner, less hassle: We handle everything from prototypes to small runs, so you’re not juggling 5 different vendors or chasing down late shipments.
It keeps your business flexible—so you adapt to changes, instead of getting stuck by them.
one stop plastic injection mold maker molding manufacturer

KingStar Mold specializes in building custom injection molds and manufacturing plastic, silicon & high precision metal parts. With decades of expertise in injection molding, mould/tooling building, CNC machining, 3D printing, and sheet metal fabrication, we provide high-quality solutions tailored to your needs.

  • No. 319, Baisheng Road, Kunshan City, Jiangsu Province, China

  • +86 512 5799 9297

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