CS Tool Engineering – Your trusted partner in plastic injection mold manufacturing since 1967, delivering innovative solutions for the automotive and consumer goods industries.

Precision Tooling. Engineered with Pride in Cedar Springs, Michigan

Delivering custom tooling solutions with craftsmanship, innovation, and over five decades of experience.

25 Years of Expertise

🛠️ On-Site Tooling Evaluation & Troubleshooting

With over 25 years of hands-on experience in tooling and injection molding, our team offers expert on-site troubleshooting and process evaluation services. We specialize in diagnosing complex tooling and molding issues directly at your facility—minimizing downtime and getting your production back on track quickly.

From part defects like flash, short shots, and burn marks to cycle inefficiencies and mold wear, we identify root causes and provide immediate corrective actions or tailored recommendations for tooling modifications. Our on-site support ensures real-time collaboration with your production team, delivering practical solutions that improve mold performance, enhance part quality, and extend tool life. Best of all, this service is complimentary when you partner with us for tooling, repairs, or engineering support.

Our Capabilities & Equipment List

5 Axis Finishing Machines

At CS Tool Engineering, we utilize the latest in 5-axis machining technology to deliver precise, efficient, and complex part geometries that traditional 3-axis systems simply can’t achieve.

6-Axis Gundrilling Capabilities

At CS Tool Engineering, our 6-Axis Taurus Gundrill brings unmatched accuracy and efficiency to deep-hole drilling operations. Designed for precision, repeatability, and flexibility, this advanced system allows us to perform multi-angle drilling, cross-hole machining, and compound-angle operations

Finishing Machines

At CS Tool Engineering, our commitment to accuracy and efficiency is backed by the advanced machining capabilities of our Makino F-Series vertical machining centers

5 Axis Finishing Machines

At CS Tool Engineering, we utilize the latest in 5-axis machining technology to deliver precise, efficient, and complex part geometries that traditional 3-axis systems simply can’t achieve.

Electrical Discharge Machining (EDM) Capabilities

At CS Tool Engineering, precision is our passion — and our EDM department reflects that commitment. Equipped with industry-leading technology, including our Charmilles Model 810

Horizontal Centering Machinces

From precision molds to large structural components, our horizontal machining and boring equipment ensure accuracy, repeatability, and efficiency on every job

⚙️ Design & Engineering Support

Plastic Injection Mold Making

From concept to completion, we build high-performance injection molds that meet tight tolerances and production demands.

Compression Molding

Custom-built compression molds for durable, high-heat, and complex parts across various industries.

  • Die Cast Tooling
    • Precision tooling solutions designed for high-volume die casting applications.

We engineer multi-material molds to create complex parts with enhanced functionality and aesthetics.

🔄 Maintenance & Repair

Mold Preventive Maintenance (PMs)
Extend mold life and reduce downtime with routine cleaning, inspection, and component replacement.

Injection & Compression Mold Repairs
Skilled technicians restore mold function quickly and reliably to keep production on track.

Assembly Fixture Nest Fabrication
Custom fixtures and nests built to streamline your in-house assembly processes.

🔍 Precision Services

CMM Inspection
State-of-the-art coordinate measuring machines (CMM) ensure accuracy and quality at every stage.

In-House Mold Polishing
Fast turnaround polishing and texture finishing performed on-site for full control and consistency.

Wire EDM
Precision electrical discharge machining for complex, tight-tolerance components.

Laser Welding
Micro-welding for mold repairs and intricate modifications without affecting part geometry.

Molding Conception

Mold Design
Collaborative, CAD-driven designs built for performance and maintainability.

Moldflow Analysis
Simulate part fill, cooling, and warpage before tooling to optimize cycle time and mold longevity.

Part Feasibility Studies
Assess manufacturability and tool design considerations early in the product lifecycle.

📐 Design for Manufacturability (DFM)

Feasibility Analysis
Before production starts, our team helps optimize designs to ensure they can be manufactured efficiently, with fewer revisions and lower costs.

Material Selection Consulting
Support with selecting the best resin or alloy based on end-use requirements, part geometry, and tooling conditions.

🧠 Engineering Consulting & Tool Optimization

Tool Life Cycle Analysis
We analyze mold and tool wear patterns to extend tool life, reduce costs, and minimize downtime through data-driven recommendations.

Cycle Time & Efficiency Optimization
With years of toolmaking experience, our engineers identify inefficiencies and bottlenecks, offering custom modifications or process changes that improve overall productivity without compromising quality.

🔒 ISO Compliance 9001:2015 Certified

Traceability Systems
Ensure all tooling, repairs, and parts meet rigorous documentation standards for ISO and automotive certifications.

Frequently Asked Questions

❓ What industries does CS Tool Engineering serve?

We primarily serve automotive, consumer goods, and industrial manufacturing sectors — providing high-performance tooling and precision services for Tier 1 suppliers and OEMs.

❓ Do you offer in-house mold design?

Yes. CS Tool provides complete in-house mold design using CAD and Moldflow software. Our design process ensures optimal part performance, manufacturability, and tool life.

❓ What types of molds do you build?

We specialize in plastic injection molds, compression molds, die cast tooling, and over molding solutions. We also provide in-mold assembly and lamination capabilities.

❓ Can you handle mold maintenance and repairs?

Absolutely. We provide full preventive maintenance (PM) services and offer in-house repairs for both injection and compression molds — including laser welding and polishing.

❓ Do you offer mold flow analysis before tooling?

Yes, we perform Moldflow simulations to evaluate fill, cooling, and warpage before cutting steel — helping reduce costly design changes and delays.

Do you have any lingering inquiries?

Experiencing difficulty locating the desired information? Reach out for a discussion.

See What We Do In The Shop