Spring Calculator
Stiffness, stress, safety factor, and fatigue life calculation with ISRI engineering best practices and EN/SMI standards.
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Spring Engineering Operating System
From geometry → physics → safety → RFQ
A unified engineering platform for designing, reviewing, and handing off springs with accountability.
k(x) · Stress · Grinding · Fatigue
Engineering Risk Radar
Engineering Risk Radar for Spring Design
See engineering validity, manufacturing risk, and quality exposure — before production.
Not just calculations. Built-in engineering rules transform spring designs into manufacturing-ready decisions.
Rule-based, explainable. No black-box decisions.
Engineering OK
Physics-based validation ensures stress, deformation, and geometry are sound.
Manufacturing Risk
Identify coil density, wire length, spacing, and process-sensitive designs early.
High Risk Alert
Catch unmanufacturable or failure-prone designs before drawings reach the shop floor.
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Manufacturing Confidence
Manufacturing-Aligned Engineering
Replace 'trial-and-error' with engineering certainty. Our platform bridges the gap between digital design and physical production.
Factory-Aligned Models
Models calibrated against real factory inspection reports (DIN / ISO standards).
Verified Load Paths
Stress, stiffness, and buckling paths verified against production data — not just curve-fitting.
Manufacturing-Ready
Built to validate designs before tooling, minimizing the cost of trial-and-error.
Trusted by Industry Standards
Our core logic matches factory quality reports used in automotive, tooling, and medical environments. No black-box decisions.
DIN 2095/96ISO 10243VDA 6.3
Live Risk Brain
Design → Production → Quality: Closed Loop
Not just calculations. A unified intelligence layer that connects engineering design, real-time production monitoring, and quality analytics into one explainable decision system.
Step 1
Design
Engineering Risk Radar evaluates design feasibility before production starts.
Rule-based, explainable. No black-box decisions.
Stress AnalysisDFM RulesRisk Score
Step 2
Production
Live monitoring with explainable risk drivers. Demo-first, production-ready.
Engineering assumptions validated by real production data.
Cycle TimeTemp DriftAlerts
Step 3
Quality
SPC, Nelson rules, Cp/Cpk, MSA (Gage R&R), and PPAP-ready reports.
Fully traceable, explainable, and auditable.
I-MR / Xbar-RMSAPPAP
Live Risk Brain: The Unified Intelligence
Combines Engineering Radar + Production State + Quality Analytics into one explainable score with actionable drivers.
Stabiliser Bar (NEW)
Torsion & bending analysis for solid/tubular bars. Traceable execution.
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Wave Spring
Envelope-driven engineering for multi-turn wave springs. Includes force curve, fatigue risk, and dynamic height margin.
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Arc Spring
High-fidelity curved beam theory for arc springs. Hysteresis modeling and stress governance for NVH applications.
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Engineering Analysis
Complete stress, S-N fatigue life, safety factor, and buckling analysis for all spring types.
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Spring Simulator
Interactive 3D modeling with pitch, free length, and bending foot presets.
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CAD Export
Creo-ready PDF, STEP, and native files powered by automated drafting pipelines.
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RFQ
Hand off validated designs directly to ISRI-SHUANGDI sourcing in one click.
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Spring Catalog
Search verified production springs with tolerance, finish, and load filters.
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Quality Management
Block problematic designs before production: Expose manufacturing risks at design stage, know feasibility before quoting.
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PPAP
Aggregate engineering, manufacturing, and quality data into submission-ready PSW packages for OEM approval.
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Quality Training Hub
Gamified training for Awareness, Diagnosis, and Decision making. Interactive labs included.
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Engineering Training
Learn springs through engineering workflows, not slides. Integrated with calculators, validation, and visualization.
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Material Library
Engineering properties, comparison, and stage impact warnings for spring materials.
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