Injection Molding Services
Injection molding produces parts by forcing molten material into a mold where it cools and hardens to the mold’s shape.
eMachineShop offers cost-effective injection molding solutions whether you need a hundred pieces or a large production order.
- 50+ Materials.
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What is Plastic Injection Molding?
Plastic injection molding is a process by which granular plastic is fed from a hopper into a heated chamber where it melts and hardens to create parts.
The granules are fed into the heating chamber by a screw-type plunger where they melt. As the plunger advances, the melted plastic is forced through a nozzle into the mold cavity.
Since the mold remains relatively cold, the plastic solidifies almost immediately after the cavity is filled. After the plastic is injected, it must cool before the final part can be ejected from the mold.
Advantages
- Economical for large quantities
- Can make almost any 2D or 3D shape
- Side and threaded holes moldable
- Finishing not required
Applications
- Automotive components
- Gears
- Washers
- Wire spools
- Enclosures
Design Tips for Injection Molded Parts
Injection Molding Materials and Specifications
Material Name |
Tensile Strength |
Specifications |
Min Size (mm) |
Max Size (mm) |
Tolerance (mm) |
Clearance (mm) |
Min Supported Walls (mm) |
Min Unsupported Walls (mm) |
Min Supported Wires (mm) |
Min Unsupported Wires (mm) |
Min Emboss Details (High and Wide) (mm) |
Min Emboss Text (High and Wide) (mm) |
Min Engrave Details (Deep and Wide) (mm) |
Min Engrave Text (Deep and Wide) (mm) |
Single Escape Hole Diameter (mm) |
Multipe Escape Hole Diameter (mm) |
Multiple Parts per File |
Interlocking OK |
Enclosed OK |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Aluminum AlSi10Mg – Matte | Selective Laser Melting (SLM) | ≈ 88.4% Al, 10% Si, 0.35% Mg, <1.25% Other | X + Y + Z > 30 | 250 x 250 x 200 | ±2% | 0.6 | 1 | 1 | 1.5 | 1.5 | 0.4 | 0.8 | 0.4 | 1 | 4 | 2 | No | Yes | No |
Stainless Steel 316L – Matte | Binder Jetting | 100% Single Alloy Stainless Steel | 15 × 15 × 3 | 127 × 127 × 76.2 | ±0.508mm | 0.3 | 0.8 | 1 | 0.8 | 1 | 1 | 1 | 1 | 1 | 5 | 2.54 | No | No | No |
Stainless Steel 316L – Lightly Polished | Binder Jetting | 100% Single Alloy Stainless Steel | 15 × 15 × 3 | 127 × 127 × 76.2 | ±0.508mm | 0.3 | 0.8 | 1 | 0.8 | 1 | 1 | 1 | 1 | 1 | 5 | 2.54 | No | No | No |
Stainless Steel 420, Bronze Infused – Matte Black | Binder Jetting | 60% Stainless Steel, 40% Bronze Matrix | 2.5 × 2.5 × 3 | 762 × 393 × 393 | ±5% | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | No | No | No |
Stainless Steel 420, Bronze Infused – Polished Bronzed Black | Binder Jetting | 60% Stainless Steel, 40% Bronze Matrix | 2.5 × 2.5 × 3 | 762 × 393 × 393 | ±5% | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | No | No | No |
Stainless Steel 420, Bronze Infused – Matte Bronzed Silver | Binder Jetting | 60% Stainless Steel, 40% Bronze Matrix | 2.5 × 2.5 × 3 | 762 × 393 × 393 | ±5% | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | No | No | No |
Stainless Steel 420, Bronze Infused – Polished Bronzed Silver | Binder Jetting | 60% Stainless Steel, 40% Bronze Matrix | 2.5 × 2.5 × 3 | 762 × 393 × 393 | ±5% | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | No | No | No |
Stainless Steel 420, Bronze Infused – Polished Bronze | Binder Jetting | 60% Stainless Steel, 40% Bronze Matrix | 2.5 × 2.5 × 3 | 762 × 393 × 393 | ±5% | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | No | No | No |
Stainless Steel 420, Bronze Infused – Polished Gold | Binder Jetting | 60% Stainless Steel, 40% Bronze Matrix | 2.5 × 2.5 × 3 | 178 × 178 × 178 | ±5% | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | No | No | No |
Stainless Steel 420, Bronze Infused – Polished Nickel | Binder Jetting | 60% Stainless Steel, 40% Bronze Matrix | 2.5 × 2.5 × 3 | 178 × 178 × 178 | ±5% | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 4 | 2 | No | No | No |
Brass – Lightly Polished | Lost Wax Casting | 80% Cu, 15% Zn, 5% Sn | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.6 | 0.6 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Brass – Lightly Polished (Interlocking) | Lost Wax Casting | 80% Cu, 15% Zn, 5% Sn | 2.4 × 2.4 × 0.6 | 75 × 75 × 40 | ±0.25mm and ≤2.5% shrinkage | 1 | 0.8 | 0.8 | 1.5 | 1.5 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | ≤6 | ≤6 |
Brass – Polished | Lost Wax Casting | 80% Cu, 15% Zn, 5% Sn | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Brass – Polished (Interlocking) | Lost Wax Casting | 80% Cu, 15% Zn, 5% Sn | 2.4 × 2.4 × 0.6 | 75 × 75 × 40 | ±0.25mm and ≤2.5% shrinkage | 1 | 0.8 | 0.8 | 1.5 | 1.5 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | ≤6 | ≤6 |
Brass – Polished, 14k Gold Plated | Lost Wax Casting | 0.25 μm Electroplating | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Brass – Polished, 18k Gold Plated | Lost Wax Casting | 0.25 μm Electroplating | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Brass – Polished, Rose Gold Plated | Lost Wax Casting | 0.25 μm Electroplating | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Brass – Polished, Rhodium Plated | Lost Wax Casting | 0.25 μm Electroplating | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Bronze – Lightly Polished | Lost Wax Casting | 90% Cu, 10% Sn | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.6 | 0.6 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Bronze – Lightly Polished (Interlocking) | Lost Wax Casting | 90% Cu, 10% Sn | 2.4 × 2.4 × 0.6 | 75 × 75 × 40 | ±0.25mm and ≤2.5% shrinkage | 1 | 0.8 | 0.8 | 1.5 | 1.5 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | ≤6 | ≤6 |
Bronze – Polished | Lost Wax Casting | 90% Cu, 10% Sn | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Bronze – Polished (Interlocking) | Lost Wax Casting | 90% Cu, 10% Sn | 2.4 × 2.4 × 0.6 | 75 × 75 × 40 | ±0.25mm and ≤2.5% shrinkage | 1 | 0.8 | 0.8 | 1.5 | 1.5 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | ≤6 | ≤6 |
Copper – Lightly Polished | Lost Wax Casting | 100% Cu | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.6 | 0.6 | 0.8 | 1 | 0.3 | 0.3 | 0.3 | 0.3 | 4 | 2 | No | No | No |
Copper – Polished | Lost Wax Casting | 100% Cu | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Silver – Lightly Polished | Lost Wax Casting | 92.5% Ag | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤1.5% shrinkage | 0.3 | 0.6 | 0.6 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Silver – Lightly Polished (Interlocking) | Lost Wax Casting | 92.5% Ag | 2.4 × 2.4 × 0.6 | 75 × 75 × 40 | ±0.25mm and ≤2.5% shrinkage | 1 | 0.8 | 0.8 | 1.5 | 1.5 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | ≤6 | ≤6 |
Silver – Polished | Lost Wax Casting | 92.5% Ag | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Silver – Polished (Interlocking) | Lost Wax Casting | 92.5% Ag | 2.4 × 2.4 × 0.6 | 75 × 75 × 40 | ±0.25mm and ≤2.5% shrinkage | 1 | 0.8 | 0.8 | 1.5 | 1.5 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | ≤6 | ≤6 |
Silver – Extensively Polished | Lost Wax Casting | 92.5% Ag | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Silver – Aged | Lost Wax Casting | 92.5% Ag, Recesses Darkened | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Gold, 14k Yellow – Polished | Lost Wax Casting | 58% Au, 31% Cu, 10% Ag, 1% Zn | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Gold, 18k Yellow – Polished | Lost Wax Casting | 75% Au, 10% Cu, 15% Ag | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Gold, 14k Rose – Polished | Lost Wax Casting | 58% Au, 40% Cu, 1% Ag, 1% Zn | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Gold, 14k White – Polished | Lost Wax Casting | 58% Au, 24% Cu, 9% Zn, 9% Ni | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Platinum – Polished | Lost Wax Casting | 95% Pt, 5% Ru | 2.4 × 2.4 × 0.6 | 89 × 89 × 100 | ±0.25mm and ≤2.5% shrinkage | 0.3 | 0.8 | 0.8 | 0.8 | 1 | 0.4 | 0.4 | 0.35 | 0.35 | 4 | 2 | No | No | No |
Nylon PA 2200 – Matte White | Selective Laser Sintering (SLS) | X + Y + Z ≥ 7.5 | 650 × 350 × 550 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.8 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes | |
Nylon PA 2200 – Matte Black | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 7.5 | 180 × 230 × 320 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.8 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA 2200 – Smooth White | Selective Laser Sintering (SLS) | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes | |
Nylon PA 2200 – Smoothest White | Selective Laser Sintering (SLS) | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes | |
Nylon PA 2200 – Smoothest Black | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA 2200 – Smooth Blue | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA 2200 – Smooth Green | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA 2200 – Smooth Red | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA 2200 – Smooth Orange | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA 2200 – Smooth Yellow | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA 2200 – Smooth Purple | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA 2200 – Smooth Pink | Selective Laser Sintering (SLS) | Dyed | X + Y + Z ≥ 25 and axes must be ≥ 2.5 | 200 × 150 × 150 | ±0.15mm and ±0.15% of longest axis | 0.5 | 0.7 | 0.7 | 0.9 | 1 | 0.2 | 0.5 | 0.2 | 0.5 | 4 | 2 | No | Yes | Yes |
Nylon PA11 – Matte White | Selective Laser Sintering (SLS) | Flexible, High Elongation at Break | X + Y + Z ≥ 7.5 | 290 × 290 × 600 | ± 0.2mm | 1 | 0.4 | 0.5 | 0.7 | 1 | 0.4 | 0.4 | 0.4 | 0.4 | 4 | 2 | No | Yes | Yes |
Nylon PA12 – Matte Gray | Multi Jet Fusion | 7x 7x 7 & X + Y + Z > 9 | 284 x 380 x 380 | ±0.25mm and ±0.1% of the length | 0.6 | 0.4 | 0.5 | 0.8 | 0.9 | 0.2 | 0.4 | 0.2 | 0.4 | 4 | 2 | No | Yes | No | |
Nylon PA12 – Matte Black | Multi Jet Fusion | 7x 7x 7 & X + Y + Z > 9 | 210 x 210 x 360 | ±0.25mm and ±0.1% of the length | 0.6 | 0.4 | 0.5 | 0.8 | 0.9 | 0.2 | 0.4 | 0.2 | 0.4 | 4 | 2 | No | Yes | No | |
Nylon PA12 – Smooth Black | Multi Jet Fusion | 10 x 10 x 10 | 284 x 380 x 380 | ±0.2mm to ±0.4% | 5 | 1.5 | 1.5 | 1.5 | 1.5 | 0.5 | 0.5 | 0.4 | 0.4 | 10 | 8 | No | Yes | No | |
Nylon PA12, Glass-Filled – Matte Gray | Multi Jet Fusion | 40% Glass-Filled | X + Y + Z > 9 | 284 x 380 x 380 | ±0.25mm and ±0.2% of the longest axis | 0.6 | 0.75 | 1 | 1 | 1 | 0.5 | 0.5 | 0.5 | 0.5 | 4 | 2 | No | Yes | No |
Nylon PA12, Glass-Filled – Matte Dark Gray | Multi Jet Fusion | 40% Glass-Filled | X + Y + Z > 9 | 284 x 380 x 380 | ±0.25mm and ±0.2% of the longest axis | 0.6 | 0.75 | 1 | 1 | 1 | 0.5 | 0.5 | 0.5 | 0.5 | 4 | 2 | No | Yes | No |
Acrylic Photopolymer – Smooth Frosted Clear | Material Jetting | Fine Detail | X + Y + Z > 12 | 282 × 181 × 150 | ±0.7mm for every 100mm | 0.05 | 0.3 | 0.6 | 0.6 | 0.8 | 0.1 | 0.1 | 0.1 | 0.1 | N/A | 4 | No | Yes | No |
Acrylic Photopolymer – Smoothest Frosted Clear | Material Jetting | Fine Detail | X + Y + Z > 12 | 282 × 181 × 100 | ±0.7mm for every 100mm | 0.05 | 0.3 | 0.6 | 0.6 | 0.8 | 0.1 | 0.1 | 0.1 | 0.1 | N/A | 4 | No | Yes | No |
Acrylate Photopolymer – Smooth White | Stereolithography Apparatus (SLA) | High Resolution Accura Xtreme 200 | 3.8 x 3.8 x 3.8 | 609 x 711 x 457 | ±0.2mm to ±0.4% | 0.3 | 0.4 | 0.5 | 0.5 | 0.6 | 0.4 | 0.4 | 0.3 | 0.3 | 5 | 4 | No | No | No |
Acrylate Photopolymer – Smooth Gray | Stereolithography Apparatus (SLA) | High Resolution Accura Xtreme | 3.8 x 3.8 x 3.8 | 482 x 482 x 558 | ±0.2mm to ±0.4% | 0.3 | 0.4 | 0.5 | 0.5 | 0.6 | 0.4 | 0.4 | 0.3 | 0.3 | 5 | 4 | No | No | No |
Acrylate Photopolymer – Smooth Semi-Clear | Stereolithography Apparatus (SLA) | High Resolution Accura 60 | 3.8 x 3.8 x 3.8 | 609 x 711 x 457 | ±0.2mm to ±0.4% | 0.3 | 0.4 | 0.5 | 0.5 | 0.6 | 0.4 | 0.4 | 0.3 | 0.3 | 5 | 4 | No | No | No |
TPU Thermoplastic Polyurethane – Matte Off-White | Selective Laser Sintering (SLS) | Rubber-Like | 15 x 15 x 0.7 , X + Y + Z ≥ 15 | 200 x 200 x 200 | ±0.7mm for every 100mm | 1 | 0.7 | 0.7 | 1 | 2 | 1 | 1 | 1.5 | 1.5 | 4 | 3 | No | Yes | Yes |