ADDITIVE MANUFACTURING

3D Printing
Rapid prototyping · Small-batch manufacturing one-stop service

A five-process matrix of SLA photocuring, SLS nylon sintering, MJF, FDM, and SLM metal printing, with 24-hour rapid part delivery. From appearance prototypes and functional validation to low-volume bridge production and conformal-cooling mold inserts—no tooling required, starting from a single piece, turning ideas into parts instantly.

24h
Fastest Delivery
±0.05
Accuracy mm/100mm
30+
Available Materials
1 pc
Minimum Order Quantity
Upload a Model for a Quote → Smart Process Selection
切片分层 · 逐层堆积 · 自由成型（STL/STEP 直接打印）
Automotive Validation Consumer Electronics Medical Devices Industrial Design Robotics Drones / Model Aircraft Mold Conformal Cooling Channel Automotive Validation Consumer Electronics Medical Devices Industrial Design Robotics Drones / Model Aircraft Mold Conformal Cooling Channel
WHY 3D PRINTING

Why Choose 3D Printing

No tooling required, digital direct manufacturing — in product development and low-volume stages, additive manufacturing offers irreplaceable advantages in speed, freedom, and per-part economy.

Ultra-Fast Delivery

Upload STL and production begins immediately—no waiting for tooling. Standard parts ship in as fast as 24 hours, accelerating iteration by more than 10×.

Geometric Freedom

Hollowed, lattice, internal-flow-channel and integral-hinge structures that traditional processes cannot machine are easily achieved by layer-by-layer deposition.

Zero Tooling Cost

Start from 1 piece, produce on demand, saving tens of thousands in mold investment; significant per-unit cost advantage for low volume and custom parts.

Rapid Iteration & Validation

Re-print the same day on design revision; failure cost is minimal, helping R&D lock the optimal solution before tooling.

Bridge to Mass Production

During mold development, supply low-volume parts via 3D printing to seize the market window; seamless switch to mass production with integrated molding.

Engineering-Grade Materials

From ABS-like, nylon glass-fiber, transparent, rubber-like to stainless steel / aluminum alloy, 30+ materials meet all needs from appearance to function.

CORE TECHNOLOGY

Five Core Printing Technologies

From high-precision appearance to metal functional parts, the process matrix covers the full product-development lifecycle.

SLA (Stereolithography)

High-Precision Appearance

UV laser cures liquid resin layer by layer; smooth surface and sharp details, the top choice for appearance prototypes and display models.

Surface QualityExcellent
±0.05mm Precision0.05mm Layer Thickness
24h Turnaround
Get a Quote

SLS Nylon Sintering

Functional Strength

Laser sintering of nylon powder requires no supports and offers mechanical properties close to injection-molded parts; ideal for functional validation and low-volume structural parts.

Mechanical PropertiesStrong
PA12 / Glass-Fiber ReinforcedSupport-Free Nesting
Batch Nested Printing
Get a Quote

MJF (Multi Jet Fusion)

King of Low-Volume Production

HP Multi Jet Fusion technology: high molding efficiency, good density, isotropic properties, optimal cost at hundreds-to-thousands batch level.

Batch EfficiencyHigh
IsotropicGray/Black molding
Bridge to Production
Get a Quote

FDM (Fused Deposition Modeling)

Economical Large Parts

Engineering filament fused deposition: low cost, large size, suitable for fixtures, structure verification and large concept parts.

Cost AdvantageExcellent
ABS/PC/Carbon FiberMeter-Class Large Parts
Fixtures & Tooling
Get a Quote

SLM Metal Printing

Direct Metal Fabrication

Selective laser melting of stainless steel, aluminum alloy and mold steel directly prints metal functional parts and conformal-cooling-channel mold inserts.

Density99.9%
316L / AlSi10MgConformal Cooling Channel
Mold Collaboration
Get a Quote

Post-Processing Center

Ready-to-Use Delivery

Polishing, spray painting, silk-screen printing, plating, dyeing, tapped inserts — one-stop post-processing; delivered ready to assembly and display standards.

Appearance GradeGrade A
Painting / PlatingPantone Color Matching
One-Stop Delivery
Get a Quote
SMART SELECTOR

Smart Process Selector

Answer two questions to instantly get the engineer-recommended printing process and material direction.

1What is your part mainly used for?
2Expected quantity scale?
SLA (Stereolithography)
Recommended materials: high-precision resin / ABS-like resin
Smooth surface and sharp details; with spray-painting and silk-screening post-processing it reaches display-grade appearance, the optimal solution for appearance prototypes.
±0.05mm24h turnaroundPaintable & platable
Request a Quote for This Plan →
INTERACTIVE LAB

Accuracy and Cost, Clearly Visible

Drag the slider to feel the effect of layer thickness on surface quality; the cost curve tells you the economic break-even point between 3D printing and tooled injection molding.

Layer Height Visualization

Smaller layer thickness gives finer layers and higher accuracy, at the cost of longer print time.

0.10 mm
Current Layer Height
SLA Standard tier: best balance of appearance and efficiency, suitable for most prototypes.
0.050.100.200.30 mm

Unit Cost × Production Quantity

Up to a few hundred pieces, 3D printing is more cost-effective; beyond the break-even point, injection molding's advantage of amortizing mold cost emerges.

数量（件）→ 单件成本 ¥ 1 100 500 2k 10k 盈亏平衡点 ≈ 400 件
3D Printing (No Tooling Cost) Injection Molding (Incl. Tooling Amortization)
SERVICE FLOW

Eight Steps from Model to Finished Part

Full-process digital management; every step traceable, progress viewable in real time.

Upload Model

STL/STEP/3MF

Printability Check

Wall Thickness / Structure Diagnosis

Process Quotation

Response Within 2 Hours

Slicing & Production Scheduling

Parameter Optimization

Printing

Process Monitoring

Post-Processing

Powder Removal / Curing / Sanding

Quality Inspection

100% Dimensional & Appearance Inspection

Shipping & Delivery

Free Shipping via SF Express

MATERIAL LIBRARY

3D Printing Material Library

30+ engineering materials covering appearance, structure, temperature resistance, flexibility, and metal needs, quickly filterable by category.

MaterialProcessTensile Strength MPaHeat Resistance ℃Key PropertiesTypical Applications
Standard High-Precision ResinSLA45~55Fine Surface Finish, Sharp DetailsAppearance Prototypes, Display Models
ABS-Like Tough ResinSLA50~65High Toughness, Tappable for AssemblyStructural Prototypes, Snap-Fit Validation
Transparent ResinSLA48~55High Light Transmission, Polishable to Acrylic-Like FinishLamp Covers, Flow Channel Visualization
High-Temperature ResinSLA52~230Short-Term High-Temperature ResistanceAir Duct Testing, Temperature Resistance Validation
PA12 NylonSLS / MJF48~170Tough, Wear-Resistant, Injection-Molding-Like PerformanceFunctional Parts, Low-Volume Structural Parts
PA12+GF Glass FiberSLS / MJF51~175High Rigidity, Dimensional StabilityBrackets, Gears, Load-Bearing Parts
TPU 95ASLS—~80Rubber-Like Elasticity, Flex-ResistantSeals, Cushioning Pads, Watch Straps
ABS / PCFDM40–60~95–120Low Cost, Engineering-Grade StrengthJigs & Fixtures, Large-Size Validation
PA-CF Carbon Fiber NylonFDM85~150Lightweight, High Rigidity, Metal ReplacementRobotic Arms, Drone Structures
316L Stainless SteelSLM560>500Corrosion-Resistant, Weldable and PolishableMetal Functional Parts, Fluid Components
AlSi10Mg Aluminum AlloySLM430~200Lightweight, High Thermal ConductivityHeat Dissipation Structures, Lightweight Brackets
MS1 Tool SteelSLM1100>400High Hardness, Age-HardenableConformal Cooling Mold Inserts
The above are typical reference values; actual values are subject to the grade TDS. Not sure which material to choose? Enter the material database to compare → or use the smart process selector above.
CAPACITY & SPEC

Equipment Capacity & Accuracy Specifications

Multiple industrial-grade machines scheduled 7×24; large format and high precision combined.

±0.05mm
SLA Printing Accuracy
Dimensional Tolerance per 100 mm
0.05mm
Minimum Layer Height
Assured Detail Reproduction
1700mm
Maximum Build Size
One-Piece Large Part Printing, No Assembly
0.4mm
Minimum Wall Thickness
Thin-Wall Structures Formable
ProcessBuild Size mmLayer Height mmAccuracyApplications
SLA (Stereolithography)600 × 600 × 4000.05–0.15±0.05mm/100mmAppearance prototypes, transparent parts, fine structures
SLS Nylon Sintering380 × 380 × 5000.10–0.12±0.15mm/100mmFunctional Parts, Snap-Fits & Hinges, Wear-Resistant Parts
MJF (Multi Jet Fusion)380 × 284 × 3800.08±0.10mm/100mmLow-Volume Production, Dense Functional Parts
FDM (Fused Deposition Modeling)1000 × 1000 × 17000.10–0.30±0.20mm/100mmLarge Parts, Jigs & Fixtures
SLM Metal Printing280 × 280 × 3500.03–0.06±0.10mm/100mmMetal Functional Parts, Conformal Cooling Inserts
AM + MOLDING

Additive × Molding · Full-lifecycle synergy

3D printing is not an isolated process—it is deeply coupled with Senrui's molding and injection capabilities, covering a product's full lifecycle from 0 to 1,000,000 pieces.

Development Stage · Rapid Validation

Before tooling, use SLA / SLS prototypes to verify appearance, assembly, and function; after locking the design, invest in the mold to avoid mold-change risk and cost.

Ramp-Up Stage · Bridge Production

Within the 4–6 weeks of mold manufacturing, use MJF/SLS for small-batch supply to capture the market window, then seamlessly switch to injection mass production once the mold is ready.

Mass Production Stage · Tooling Enablement

SLM-printed conformal-cooling mold inserts raise cooling efficiency by 30%+, shortening the injection cycle; FDM-printed production-line fixtures and tooling.

CASE STUDIES

3D Printing Case Studies

Representative project types are shown below (examples, not specific customers) to demonstrate multi-industry additive manufacturing delivery capability.

Automotive Validation Example

Full-Process Validation of Automotive Interior Prototypes

Combined delivery of SLA appearance parts + SLS functional clips; assembly verification of the entire interior module completed in 3 days, helping the client lock in two structural improvements before tooling.

SLA+SLS3-day deliveryAutomotive
Electronics Low-Volume Example

Low-Volume Bridge Production for Smart Hardware

MJF nylon housings, 500 sets of bridge production, with dyeing + UV spraying post-processing to achieve production appearance, helping the customer launch 5 weeks earlier; switch to injection molding once the mold is ready.

MJFBridge to ProductionElectronics
Medical Customization Example

Custom Medical Device Components

Transparent-resin fluid visualization component + PA12 structural bracket, meeting biocompatibility and clean delivery requirements, with single-piece customization shipped in 48 hours.

Transparent ResinCustomMedical
Mold-Enabled Example

Conformal Cooling Mold Inserts

SLM-printed MS1 mold-steel conformal-cooling inserts shortened cavity cooling time by 32%, reduced the molding cycle from 38 s to 29 s, and significantly increased annual capacity.

SLMConformal Cooling ChannelMold Collaboration
0
Total Parts Printed (pcs)
0h
Fastest Lead Time
0%
First-Time Delivery Pass Rate
0+
Available Engineering Materials
CORE METRICS

3D Printing Core Capability Metrics

Presenting the process capability of Senrui's additive manufacturing center with quantified data; all metrics come from production-line measurements and typical reference values.

99.9%
Metal Part Density
SLM selective laser melting; near-fully-dense forming.
98.6%
First-Time Delivery Pass Rate
100% dimension + appearance inspection; defect rate < 1.5%
95%
SLA Accuracy Compliance Rate
±0.05 mm/100 mm stably achieved
90%
Standard Parts Delivered in 24h
Standard-size SLA parts covered by ultra-fast turnaround.
PROCESS COMPARISON

Four-process comparison · Selection guide

For the same part, different processes differ significantly in precision, strength, cost, and cycle. Click to switch and view application scenarios, pros and cons, and materials.

SLA (Stereolithography)

High-Precision AppearanceAs Fast as 24h
Applications
  • Appearance Prototypes, Display Models
  • Transparent Parts, Light Guide Parts
  • Fine structure, small-font logo
  • Exhibition Models, Cultural & Creative Teaching Aids
Key Advantages
  • Finest Surface Finish, Sharpest Details
  • Molding accuracy ±0.05 mm/100 mm
  • Minimum Layer Height 0.05mm
  • Simple post-processing (cleaning + curing)
Main Limitations
  • Relatively Brittle, Low Impact Resistance
  • Moderate Heat Resistance (~55℃)
  • Prone to Yellowing Under Prolonged Light Exposure
  • Lower Efficiency for Large Parts
Typical materials: Standard high-precision resin · ABS-like tough resin · Transparent resin · High-temperature-resistant resin (HDT ~230℃)

SLS / MJF nylon sintering

Functional StrengthKing of Low-Volume Production
Applications
  • Functional Validation Parts, Snap-Fits & Hinges
  • Gears, Bearing Housings
  • Low-Volume Structural Parts
  • Seals (TPU Powder)
Key Advantages
  • Support-Free, Nestable Stacking
  • Tough, Wear-Resistant, Injection-Molding-Like Performance
  • Heat Resistance ~170℃
  • MJF: Isotropic Properties, High Efficiency
Main Limitations
  • Grainy Surface Requires Sandblasting
  • Moisture Absorption Causes Slight Dimensional Changes
  • Slight Anisotropy in the Vertical Direction
  • Moderate Material & Equipment Costs
Typical materials: PA12 · PA12-GF glass-fiber · PA11 bio-based · TPU 95A powder

SLM Metal Printing

Direct Metal FabricationDensity 99.9%
Applications
  • Metal Functional Parts, Fluid Components
  • Conformal Cooling Mold Inserts
  • Medical Devices, Implant Prototypes
  • Lightweight Aerospace Structures
Key Advantages
  • 99.9% density, near-forged-part performance
  • Tensile strength 560–2000 MPa
  • Free Topology & Internal Flow Channels
  • Conformal Cooling, Lightweight Lattice Structures
Main Limitations
  • High Equipment / Powder Costs
  • Requires Heat Treatment & Wire EDM
  • Longer Lead Time (4–7 Days)
  • Support Removal Is Labor-Intensive
Typical materials: 316L · AlSi10Mg · 17-4PH · MS1 tool steel · Ti6Al4V

FDM (Fused Deposition Modeling)

Economical Large PartsLowest Cost
Applications
  • Jigs, Fixtures & Gauges
  • Large-Size Concept Models
  • Structural Validation, Educational Projects
  • Production Line Assistive Fixtures
Key Advantages
  • Lowest Cost, Wide Material Variety
  • Ultra-Large Build Size up to 1.7 m
  • Carbon Fiber Nylon Can Replace Metal
  • Easy Operation, Fast Delivery
Main Limitations
  • Visible Layer Lines Require Post-Processing
  • Accuracy ±0.20 mm/100 mm
  • Anisotropic Strength
  • Moderate Heat Resistance
Typical materials: PLA · ABS · PETG · PA-CF carbon fiber · PC
TYPICAL APPLICATIONS

Typical Application Industries

Covers additive manufacturing application scenarios in medical, automotive, aerospace, consumer goods and other industries; click tags to filter quickly.

Medical Devices & Custom Components

Transparent-resin fluid-visualization parts + PA12 structural brackets, meeting clean and biocompatible requirements, custom single pieces shipped in 48 hours, supporting small-batch implant prototypes.

SLA+SLSCustomMedical

Automotive Interior & Ducting Validation

Combined delivery of SLA appearance parts + SLS functional clips; assembly verification of the entire interior module completed in 3 days, helping the client lock in structural improvements before tooling.

SLA+SLS3-day deliveryAutomotive

Lightweight Aerospace Structures

SLM-printed titanium / aluminum lattice and topology-optimized brackets, reducing weight by 40%+ while maintaining strength and shortening lead time for hot-end parts.

SLM metalLightweightingAerospace

Low-Volume Bridge Production for Consumer Electronics

Hundreds of MJF nylon housings produced as bridge production; dyeing + UV spraying achieved production appearance, launching 5 weeks early, seamlessly switching to injection molding once the mold was ready.

MJFBridge to ProductionElectronics

Production Line Fixtures & Tooling

FDM / SLS integrally print inspection gauges, welding fixtures, and assembly jigs — conformal fit, fast delivery, directly serving automotive and aerospace mass-production lines.

FDM/SLSFixtures & toolingAutomotive / Aerospace

Wearables & Customized Housings

TPU elastic strap + transparent-resin cover combination, supporting small-batch personalized customization for rapid trial production of consumer electronics and rehabilitation aids.

TPU+TransparentCustomConsumer Goods
FAQ

FAQ

Questions you may have about 3D printing services.

How is 3D printing charged? How to get a quotation quickly?+

Cost is mainly determined by material volume, process type, precision requirements and post-processing items. Send the STL/STEP model to our email or upload via the contact page; engineers will reply with a formal quotation within 2 hours; batch parts enjoy tiered pricing.

What is the typical lead time? Can it be expedited?+

Standard SLA/FDM parts take 1-3 days, SLS/MJF parts 2-4 days, metal parts 4-7 days (including heat treatment and wire EDM). An expedited channel is supported; standard-size SLA parts can be delivered in as fast as 24 hours with SF Express next-day delivery.

Can the strength of 3D-printed parts reach injection-molded part levels?+

The mechanical properties of SLS/MJF nylon parts can reach 85–95% of injection-molded PA12, which is fully sufficient for most functional validation and low-volume scenarios; for strength-sensitive areas we provide wall-thickness and build-orientation optimization suggestions during printability checks. Metal SLM parts achieve 99.9% density, with performance close to forgings.

At what quantity should you switch from 3D printing to tooled injection molding?+

The empirical break-even point is typically at the several-hundred-piece level (depending on part size and structure). Our advantage is two production lines in one factory: early-stage 3D-printing validation and bridging, later seamless switch to mold injection molding, with print data assisting DFM review—optimal overall cost and lead time.

Which file formats are supported? What if there is a problem with the model?+

STL, STEP, 3MF, OBJ, IGS and other mainstream formats are supported. After upload we perform a free printability check (wall thickness, broken faces, overhang structures); if issues are found we issue revision suggestions or fix them on your behalf, and production is scheduled after confirmation.

Can you do appearance treatments such as spray painting, silk-screen printing, and electroplating?+

Yes. Our in-house post-processing center provides grinding, spray painting (Pantone color matching), silk-screen printing, UV, plating, dyeing, tapping, and insert installation—a full set of services; delivery meets display and assembly standards.

Upload your model, turn ideas into parts within 24 hours

Whether it's one appearance prototype, a batch of bridge products, or a conformal-cooling mold insert, send the 3D model and requirements, and our engineers will give process advice and a quote within 2 hours.

Get a Quote Learn about Mold Manufacturing

Focused on precision mold manufacturing and injection molding, integrating design, molding, injection, and assembly, committed to providing high-consistency plastic-part mass-production services to global clients.

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Contact Information

No. 2, Xiangnan 3rd Road, Qiaoli, Changping Town, Dongguan, Guangdong Province
181 1873 7116
senrmold@126.com
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