Machine Safety Specialists
Machine safety isn't a checklist. It's a system.
The right safety solution starts long before components are selected. It begins with understanding the machine, identifying hazards, defining safety functions, and validating that the system performs exactly as intended.
Donald Engineering helps manufacturers build safer, more reliable machines through practical, standards-based machine safety solutions. Whether you're designing new equipment, upgrading existing machinery, or improving compliance, our engineers are here to help.
Ready to improve your machine safety? Let's talk.
Why Donald Engineering?
For more than 60 years, we've partnered with manufacturers to solve complex automation challenges. Machine safety is one of our specialties.
Why manufacturers choose DE:
- 60+ years of industrial automation experience
- Engineering-first approach to machine safety
- Expertise in pneumatic, hydraulic, and electrical safety
- Trusted partners for industry-leading safety technologies
- Support from assessment through validation
Donald Engineering Machine Safety Services
We help customers through every stage of the machine safety process, including:
- Machine Risk Assessments
- Functional Safety Specifications
- Performance Level (PLr) Determination
- Safety Component Selection
- Safety Circuit Design
- Validation & Verification
- Documentation & Support
Machine Safety Resource Center
Machine safety can feel overwhelming. That's why we created a free educational series that breaks the process down into practical, easy-to-follow steps.
Part 1 | Machine Safety is a System
Discover why machine safety is a continuous process—not a one-time project. Learn the mindset behind building safer, more reliable machines.
Read Article →
Part 2 | Assess the Risk
Learn how to identify hazards, define machine limits, and build a strong safety foundation.
Read Article →
Part 3 | Define the Safety Function
Learn how to develop functional safety specifications and determine the required Performance Level (PLr).
Read Article →
Part 4 | Validate, Verify, & Maintain
Selecting safety components is only the beginning. Learn how to validate your system, document your work, and maintain machine safety throughout the equipment's lifecycle.
Read Article →
Let's Build a Safer Machine
Whether you're planning a new machine, upgrading existing equipment, or need help solving a safety challenge, we're here to help.
Contact Donald Engineering today to start the conversation.
Donald Engineering: Your Strategic Partner in Machine Safety
As experts in Total Machine Safety, we understand the real cost of workplace injury. We have the solutions you need to eliminate known hard costs including fines, downtime, reduced productivity, lost wages and medical expenses as well as unknown soft costs including up-time, liability insurance, workers compensation, general liability exposures, talent attraction, and employee retention.
Partnering with Donald Engineering will bring you job-specific best-practice solutions that meet or exceed industry standards and minimum OSHA requirements. Our comprehensive understanding of risk assessment, risk mitigation, and ISO standards allows us to confidently incorporate superior safety measures into all of our solutions. From simple machine guarding to control reliable components, we offer over 200 years of combined industry experience with OEMs, integrators, and end-user applications. Rest easy knowing your employees and equipment are safe and secure with Donald Engineering.
We incorporate the following tools to equip you with comprehensive machine safety solutions:
- Electrical: sensors, switches, light curtain, controllers, STO (safe torque off) linear drives
- Mechanical: rod locks, safety catchers
- Pneumatic: energy isolation and dump valves, failure to known state valves (cylinder return to home) and control reliable cylinder stop
- Hydraulic: energy isolation
We take pride in ensuring maximum uptime, lower cost of ownership, and ultimate safety for our customers, their employees, and their equipment. We’ve hand-selected vendor partners who share our values and hold themselves to the highest standards.
NEW! Announcing a NEW Partnership with Inxpect
NEW! Introducing Inxpect: Safety You Can Count On
DE is excited to announce a new partnership with Inxpect!
Inxpect, the world’s first 3D safety-rated radar certified for industrial use, will be a great addition to our offerings in machine safety solutions.
With Inxpect, your team can achieve unparalleled safety and efficiency, even in the most challenging environments.
Whether you need to detect movement in fixed applications or track static objects in mobile ones, Inxpect delivers reliable, high-performance safety solutions for automation and robotics.
Why Choose Inxpect?
- Volumetric 3D sensing: Full-body protection in hazardous areas.
- Robust in Harsh Conditions: Handles smoke, dust, sawdust, debris, and fluids effortlessly.
- Flexible Installation: Versatility to mount from floor to ceiling.
Where Inxpect Thrives:
From robot cells and cobots to palletizers, cranes, and wrapping machines, Inxpect’s innovative radar technology outshines traditional laser scanners in tough environments. It’s also a go-to solution for:
- Access Detection: Automatically places machinery in safe mode when someone or something enters the danger zone.
- Restart Prevention: Prevents machinery from restarting if movement is detected in a hazardous area.
- Anti-Collision Applications: Ensures safety and precision, even in extreme conditions
Interested to learn more or want to see it in ACTION?
Schedule a
demo with Donald Engineering today to discover how Inxpect's innovative radar solutions can transform your operations.
Call
(616) 538-8340 or email us directly at
sales@donaldengineering.com today!
Let's make safety smarter, together!
Ross Controls RSe Series: Safe Return
Designed for external monitoring for safe, redundant operation.
- 5/2 valve safe return home
- 5/2 valve for dual pressure, duplicating the concept of reduced torque in an electric motor application
- Rapid response for minimum actuating time
- Position sensors for valve fault monitoring – external monitoring device required
- Well-proven spool valve design for reliable, smooth function
- Able to run at lower pressure when utilizing the remote pilot port
- Base-mounting design
The 5/2 valve offers a great safety solution for dual pressure, duplicating the concept of reduced torque in an electric motor application. Make sure your machines and workers are in safe operating conditions at all times with the RSe Valve.
Ross Controls RSe Series: Pressure Select
The 5/2 RSe Series valve can be utilized for Safe Pressure Select Applications in order to safely control the pressure applied to a machine operation, such that a specified pressure is the default pressure and only when an appropriate signal is given supplies, a different pressure output. The default pressure would be used whenever safe operator access is required for production-related tasks and/or when a fault in the safety valve occurs.
Now Available! The 
