Precision Small Wire Compression Spring 0.15mm Dia for Sensors
Custom
Springs inside sensors demand exceptional force accuracy and
dimensional consistency. We specialize in precision small springs
with wire diameter 0.1-0.25mm, achieving spring rate tolerance
within ±5%. Ideal for pressure sensors, displacement sensors, and
micro-force balance mechanisms. 100% CCD optical inspection ensures
every spring is dimensionally perfect. Small batch from 100 pieces,
48hr sampling.
Compression Spring Product Description
In sensor design, springs often act as force-displacement
conversion or preload elements. Force deviation directly impacts
sensor accuracy. For example, if a pressure sensor's spring force
varies by more than 5%, output signal nonlinearity may result.
Tingfeng Hardware understands the demanding requirements of sensor
customers. We use Japanese high-precision spring formers with
real-time wire diameter measurement and force monitoring, ensuring
consistent coil count, OD, and free length for small-wire springs.
We have developed a dedicated micro-force test system for springs with full scale ≤5N, achieving ±0.01N accuracy. Spring
rate test reports are provided per batch. For extremely fine wire
(0.1mm), we recommend closed not ground design, as grinding may
introduce burrs. Stress-relief annealing is available upon request.
15 years of precision manufacturing experience, helping your
sensors achieve high reliability.

Compression Spring Product Features & Advantages
| Feature | Advantage to You |
|---|
| Ultra-fine wire (0.1mm) | Suitable for micro sensors and load cells with tight space and high
precision |
| Spring rate tolerance ±5% | High force consistency ensures sensor output linearity and
repeatability |
| 100% CCD optical inspection | Zero tolerance for dimensional deviation; prevents sensor assembly
failure |
| Micro-force test system | Accurate force measurement for springs ≤5N full scale; data reports
provided |
| 48hr rapid sampling | Accelerates sensor prototype development and validation cycle |

Compression Spring Product Specification
| Specification Item | Detail / Capability | Notes / Description |
|---|
| Wire Diameter | 0.08mm - 0.25mm | 0.08mm requires special consultation |
| Outer Diameter | 1.2mm - 4.0mm | ≥1.5mm recommended for stable production |
| Free Length | 1.5mm - 20mm | Very short springs require evaluation |
| Spring Rate | 0.01 - 2 N/mm | Micro-force range |
| Rate Tolerance | ±5% (std) / ±3% (precision) | Based on load measurement |
| End Type | Closed not ground (preferred for fine wire) | Closed & ground requires extra evaluation |
| Inspection Equipment | CCD + micro-force tester | Reports included |
| Sample Lead Time | 48-72 hours | Simple parts may be 48hr |

Compression Spring Product Applications
- Pressure Sensors: Zero and full-scale calibration springs for silicon piezoresistive
pressure sensors, requiring minimal force deviation
- Displacement Sensors (LVDT): Core return springs needing linear force-displacement
characteristics
- Micro & Limit Switches: Operating force springs for high-precision microswitches, ensuring
consistent actuation travel
Frequently Asked Questions (FAQ)
Q: Can you handle complex custom designs and provide design
optimization suggestions?
A: Absolutely. This is our core expertise. We provide free DFM
analysis within 3-5 days, often helping clients achieve 15-30% cost
reduction through design for manufacturability.
Q: How do you ensure quality consistency and handle defect issues?
A: We implement a rigorous 4-stage QC system with 100% full
inspection. Our track record shows 99.99% qualification rate.
Q: What are your lead times and how do you handle urgent orders?
A: Standard lead times: 3-7 days for prototypes, 7-15 days for mass
production. We offer VIP prioritization cutting lead times by up to
30%.
Q: Will I get timely responses and professional support throughout
the project?
A: Yes. You get a 1v1 exclusive consultant with 1-hour initial
response commitment and 24-hour technical support.
Q: Can you provide material certifications and environmental
compliance reports?
A: Yes. We provide material certifications and environmental test
reports (RoHS, REACH compliant) upon request.
Q: How do you protect my designs and intellectual property?
A: We start with mutual NDA and implement strict mold ownership
protection and confidential data security measures.
Q: What are your payment terms and MOQ requirements?
A: We offer flexible payment terms (T/T, L/C at sight) and MOQ from
1 piece for prototyping.