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When your mechanism needs consistent, measurable return force over a full meter of travel range, undersized or mismatched springs cause binding, premature fatigue, and failed assemblies. Engineers, makers, and DIY builders working on linear actuators, jigs, clamps, and automation fixtures need a compression spring they can spec with confidence — one that ships in the exact wire diameter and outer diameter they need, without guessing.
These 1000mm compression springs are wound from spring steel wire (wire diameter 0.3–6mm / approx. 0.012–0.236 in) with outer diameters ranging from 6mm to 60mm (approx. 0.24–2.36 in). Select variants are available in stainless steel or galvanized finish for added corrosion resistance. Each spring is 1 metre (1000mm / ~39.4 in) in total free length, sold in packs of 1 or 2 pieces depending on the variant.
Typical use cases include CNC router Z-axis return springs, 3D printer bed leveling mechanisms, robotic gripper return assemblies, custom jig and fixture clamping systems, and long-travel compression spring replacements in industrial equipment maintenance.
Wire diameter from 0.3mm to 6mm; outer diameter from 6mm to 60mm — covering light-duty to heavy-load applications in a single product line.
Each spring measures 1 metre (1000mm / ~39.4 in) in free length, ideal for long-travel mechanisms, custom jigs, and extended-stroke actuators.
Available in spring steel, stainless steel (selected sizes), and galvanized finish — choose the right corrosion resistance level for your environment.
Wound to maintain uniform coil pitch and consistent elastic return force across the full length — critical for repeatable, reliable mechanical performance.
Available in 1-piece or 2-piece packs depending on variant — order exactly what your project requires without excess inventory.
Compatible with CNC routers, 3D printers, robotic arms, industrial fixtures, and custom DIY mechanisms requiring a long compression spring element.
| Spring Type | Compression Spring |
|---|---|
| Free Length | 1000mm (~39.4 in) |
| Wire Diameter Range | 0.3mm – 6mm (0.012 – 0.236 in) |
| Outer Diameter Range | 6mm – 60mm (0.24 – 2.36 in) |
| Material | Spring Steel / Stainless Steel (selected variants) / Galvanized (selected variants) |
| Finish | See variant options |
| Spring Rate | See variant options |
| End Type | See variant options |
| Pack Quantity | 1 pcs or 2 pcs (see variant options) |
| Coil Direction | Right-hand wound (typical) |
Match the outer diameter (OD) to your housing bore — the spring OD should be slightly smaller than the bore so it can compress freely. Match the wire diameter to your required spring rate and load: thicker wire = stiffer spring. For rod-guided springs, the inner diameter (ID = OD minus 2× wire diameter) must clear the rod. If unsure, start with a smaller wire diameter and test deflection under your target load.
Spring rate depends on wire diameter, outer diameter, number of active coils, and material. Because these springs are 1000mm in free length with many active coils, they are generally softer (lower spring rate) than shorter springs of the same wire and OD. Exact spring rate values vary by variant — contact us to confirm if your application requires a specific rate.
Standard spring steel variants offer moderate corrosion resistance suitable for indoor and dry environments. For wet, humid, or outdoor use, select the stainless steel variant (available in 0.5×6mm size) or the galvanized variant (available in 0.8×7mm size). Stainless steel provides the best corrosion resistance; galvanized offers a cost-effective middle ground.
Compression springs can be cut to length using an angle grinder or spring cutter, but cutting changes the number of active coils and therefore the spring rate. After cutting, the end coils may need to be ground flat for proper seating. If you need a specific shorter length, cutting from a 1000mm spring is a practical approach — just recalculate your spring rate based on the new active coil count.
These springs are well-suited for CNC router Z-axis return mechanisms, 3D printer bed leveling, robotic gripper and actuator return assemblies, custom jig and fixture clamping, long-travel press tooling, and industrial equipment maintenance where a 1-meter free-length spring is required. They are not recommended for high-cycle fatigue applications without confirming the spring rate and stress levels for your specific load.
Smaller and lighter wire diameter variants (0.3mm–1.2mm) are typically available in 2-piece packs, while larger wire diameter variants (1.5mm–6mm) are available in 1-piece packs. If you need multiple springs for a symmetric mechanism (e.g., two-sided clamping), the 2-piece pack offers better value. For single-spring applications or prototyping, the 1-piece option reduces upfront cost.
The inner diameter is calculated as: ID = Outer Diameter (OD) − (2 × Wire Diameter). For example, a 0.5×6mm spring has an ID of approximately 5mm. Your guide rod must be smaller than the ID to allow free compression without binding. Leave at least 0.5–1mm clearance between the rod and the spring ID for smooth operation.
