Spring-energized PTFE Seals for Surgical Robotics Precision & Access
Compact spring- energized seal profiles made from ultra-low friction PTFE materials
SYGNUS Electrical Connectors for Neuromodulation Devices
Enabling compact medical device designs with reliable electrical connecting performance
Design Custom Spring-energized PTFE Seals
Use our 3D modeling tool to configure and visualize custom seal solutions for your application
Bal Seal Engineering: Custom Seals, Springs & Connectors
Bal Seal Engineering’s three core product lines deliver complete solutions for critical applications. Our spring-energized seals, canted coil springs, and electrical connectors share the same advanced spring technology, providing superior performance across aerospace, medical, and industrial applications.
Proven
Trusted by engineers and OEMs to protect critical equipment used everywhere, from deep sea to deep space.
Versatile
Delivers superior rotary sealing, reciprocating sealing, oscillating, static, and face sealing performance across all applications. Custom seal sizes range from 0.020 in. to 120 in. ID for precision sealing applications.
High-performance
Promotes even jacket wear and resists breakdown to extend seal service life by up to 150% over standard sealing solutions.
Predictable
Combines custom PTFE polymers, backup elements, and locking rings with wear-regulating spring energizers to resist extrusion and provide more uptime, less maintenance.
Adaptable
Compensates for large tolerances and surface irregularities, ensuring multi-point electrical contact for improved reliability, longer equipment life.
Precise
Enables accurate control of insertion and removal forces in mechanical applications, from just a few ounces to 1000s of pounds.
Canted coil springs providing consistent force for sealing and mechanical connecting applications, efficiently managing electrical current in conducting applications, and protecting sensitive electronics from the harmful effects of electromagnetic interference, or EMI. Performing across wide temperature ranges.
Multi-functional
Mechanically connects, conducts current, grounds, and shields against EMI/RFI. Simplifies designs, reduces weight, and even dissipates heat.
Robust
Maintains consistent insertion and removal forces over 1000s of cycles. Resists compression set better than fingerstock, mesh.
Ultra-Reliable
Canted coil spring technology ensures multi-point electrical connectivity and redundant power/signal paths. Compensates for tolerance variations and exhibits extremely low contact resistance throughout operational life.
Compact
Employs springs from 0.5mm (.020 in) and housings with pitch of ~2mm. Supports smaller, more functional devices.
Proven
Used in millions of medical implantable devices worldwide, it’s the designer’s choice for applications that simply cannot fail.
Flexible
Can be supplied with pre-tested seals, creating a turnkey system that eliminates sourcing and speeds product development.
Bal Seal Engineering Industries Served
Working With Bal Seal Engineering
Streamlined Engineering Process
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Engage
Our engineers analyze your sealing, connecting, conducting, or EMI shielding requirements for comprehensive application understanding.
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Design
We combine our deep knowledge base with advanced material science to engineer custom seals, springs, and contacts that elevate your design.
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Prototype
Rapid prototyping of custom seals, springs, and electrical connectors in as quickly as two weeks with comprehensive performance testing.
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Produce
AS 9100D certified production scaling from prototypes to millions of seals, springs, and contacts with rigorous quality control.
Why Engineers Choose Bal Seal Technology
Proven Performance in Mission-Critical Applications
From Apollo lunar missions to the Mars Perseverance Rover and Ingenuity copter (560+ million kilometers), our seals, springs, and electrical contacts/connectors have performed flawlessly in the harshest environments imaginable. This same proven technology protects millions of medical devices worldwide and critical defense systems that cannot fail.
Fast Custom Engineering
Get custom seal, spring, or contact proposals in as little as 3 working days, and functional prototypes in 4-6 weeks. With our combination of engineering and manufacturing expertise, we accelerate your development cycle, helping you avoid costly design
150% longer service life compared to standard sealing solutions
Zero leakage performance maintained throughout operational life
Consistent force and contact pressure as materials naturally wear
Multi-point electrical reliability compensating for tolerance variations
Reduced system downtime with fewer maintenance intervals
Our patented Bal Spring canted coil spring technology provides near-constant force across wide deflection ranges and extreme temperatures (-65°F to +600°F). This unique component enables both superior sealing performance and reliable electrical connectivity in applications where conventional solutions fail.
Unlike suppliers offering only seals OR springs OR contacts, we engineer integrated solutions that combine all three technologies. This means sealed electrical connectors, spring-loaded contact systems, and multi-functional components that simplify your design while improving performance.
Every component is manufactured in certified facilities with comprehensive quality control, ensuring consistent performance whether you need 10 prototypes or 1 million production units.
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