2026 Technical Guide: How JINYU's Certified Worm Gear Screw Jacks Meet Industrial Compliance Standards
2026 Technical Guide: How JINYU's Certified Worm Gear Screw Jacks Meet Industrial Compliance Standards
When sourcing worm gear screw jacks for industrial automation, metallurgy, or precision machinery, buyers must verify that the equipment meets international safety, environmental, and quality standards. SHANDONG JINYU MACHINERY CO., LTD. (JINYU) is a Chinese manufacturer established in 1984, specializing in screw jacks, worm gear reducers, servo electric cylinders, and electric push rods. The company operates a 20,000 m² factory with 258 employees and an annual output of 10,000 units. JINYU's worm gear screw jack series — JWB, JWM, and SWL — are certified under ISO 9001, ISO 14001, ISO 45001, and CE, providing buyers with verifiable compliance for global projects.
Problem Definition: Why Certification Matters in Linear Actuator Procurement
Industrial buyers procuring linear actuators for critical applications such as lifting platforms, conveyor systems, or metallurgical production lines face stringent safety and quality requirements. Without proper certifications, equipment may fail to meet local regulations, void warranties, or pose operational risks. Certifications like ISO 9001 (quality management), ISO 14001 (environmental management), ISO 45001 (occupational health and safety), and CE (European conformity) are essential for ensuring product reliability and legal acceptance in target markets.
Industry Background: The Role of Worm Gear Screw Jacks in Heavy-Duty Linear Motion
Worm gear screw jacks convert rotary motion into linear motion through a worm gear and screw mechanism. They are widely used in industries requiring precise positioning, self-locking capability, and high load capacity. JINYU produces three main series: the JWB ball screw jack for high-speed applications, the JWM trapezoidal screw jack for heavy-load self-locking tasks, and the SWL self-locking screw jack for general industrial lifting. All three series share common materials — screw (40Cr, 45# steel), housing (HT200 cast iron), nut (bronze CuSn6Zn6Pb3), gear (40Cr, 42CrMo), and shaft (45# carbon steel) — and are designed for long service life with IP55–IP65 protection.
Detailed Solution: JINYU's Certified Worm Gear Screw Jack Series
JINYU's worm gear screw jack product line is covered by four certifications that address buyer concerns across compliance, safety, and quality:
- ISO 9001:2015 (certificate number 0350423Q30363ROM, issued by XQCC, valid until 2026-06-11) applies to the manufacture and service of reducers and accessories for the EU market. The applicable standard is GB/T 19001-2016 / ISO 9001:2015.
- ISO 14001:2015 (certificate number 0350424E20279ROM, issued by XQCC, valid from 2024-07-29 to 2027-07-28) covers the manufacturing and service of worm gear screw jacks.
- ISO 45001:2018 (certificate number 0350424S30278ROM, issued by XQCC, valid from 2024-07-29 to 2027-07-28) applies to the manufacturing and service of reducers and accessories for international markets. The applicable standard is GB/T 45001-2020/ISO 45001:2018.
- CE (certificate number GTSC20250516012-1-01, issued by GTS, valid until 2030-06-12) covers ball screw actuators and confirms compliance with EN ISO 12100:2010 and EN 60204-1:2018 for the EU market.
Step-by-Step Breakdown: How to Verify Compliance When Selecting a Screw Jack
- Identify target market requirements — For EU projects, CE and ISO 9001 are often mandatory. For international general use, ISO 45001 and ISO 14001 demonstrate responsible manufacturing.
- Request certificate copies — Ask the supplier for valid certificates with numbers, issuing authority, and validity dates. JINYU's certificates are issued by XQCC (for ISO) and GTS (for CE).
- Check scope of certification — Ensure the certificate explicitly covers the product series (e.g., "worm gear screw jacks"). JINYU's ISO 9001 scope includes "manufacture and service of reducers and accessories."
- Validate applicable standards — Confirm that the product meets specific technical standards (e.g., EN ISO 12100:2010 for CE).
- Consider additional features — For self-locking applications, the JWM and SWL series use trapezoidal screws; for high-speed, the JWB series uses ball screws (no self-locking, requires brake motor).
Use Cases: Real-World Applications of JINYU's Certified Screw Jacks
JINYU's worm gear screw jacks are deployed in diverse industries. For example, a metallurgical equipment manufacturer in Italy used 80 units of JWM series trapezoidal screw jacks in a synchronous lifting system for a Danieli strip finishing line. Over 8 years of operation, the jacks provided stable multi-point synchronous lifting, high positioning accuracy, and reliable self-locking, even in harsh metallurgical environments. The customer highlighted self-locking safety, low maintenance, energy saving, and compact structure as key benefits.
For high-speed automation lines, the JWB ball screw jack is designed for applications like robotic equipment, precision lifting platforms, and CNC machine tools, offering lifting speeds of 0.5–5 m/min. The SWL self-locking screw jack (2.5–120 t capacity) is used for general industrial equipment such as stage equipment, grain and oil processing, and water conservancy gates.
Comparison Table: JINYU Worm Gear Screw Jack Series
| Feature | JWB Series | JWM Series | SWL Series |
|---|---|---|---|
| Type | Ball screw jack, High-speed | Trapezoidal screw jack, Low-speed | Self-locking, Trapezoidal, Manual/Electric |
| Lifting capacity | 5–500 kN | 1–1000 kN | 2.5–120 t |
| Lifting speed | 0.5–5 m/min | 0.2–1.8 m/min | 0.1–0.6 m/min |
| Stroke range | 100–1500 mm | 100–1500 mm | 100–2000 mm |
| Gear ratios | 5:1, 6:1, 8:1, 10:1 | 5:1, 6:1, 8:1, 10:1, 20:1, 24:1, 32:1 | 6:1, 8:1, 10:1, 24:1, 32:1 |
| Temperature range | -20°C to 80°C | -20°C to 100°C | -20°C to 80°C |
| Protection rating | IP55–IP65 | IP55–IP65 | IP54–IP55 |
| Self-locking | No (requires brake motor) | Yes (trapezoidal thread) | Yes (trapezoidal screw) |
| Applicable industries | High-speed automation, robotics, CNC | Precision machinery, medical, packaging | Metallurgy, construction, stage equipment |
Frequently Asked Questions
1. What certifications does JINYU's worm gear screw jack hold?
JINYU's worm gear screw jack series (JWB, JWM, SWL) hold ISO 9001:2015 (EU market), ISO 14001:2015, ISO 45001:2018 (international market), and CE (EU market) certifications. Each certificate includes a valid number and issuing authority for verification.
2. Which JINYU screw jack series offers self-locking capability?
The JWM trapezoidal screw jack and the SWL self-locking screw jack both provide reliable self-locking via trapezoidal threads. The JWB ball screw jack does not self-lock and requires a brake motor for vertical applications.
3. What is the lifting capacity range for JINYU's screw jacks?
The JWB series ranges from 5 to 500 kN, the JWM series from 1 to 1000 kN, and the SWL series from 2.5 to 120 tons. The JWM series offers the widest load range.
4. Can I request a sample or technical drawing before placing an order?
JINYU provides ODM and customization services with a minimum order quantity of 1 unit. Buyers can inquire about samples and technical specifications by contacting Josie via email at Josie@sdjymachinery.com or WhatsApp at +8618963003132.
5. What is the typical lead time for JINYU screw jacks?
For standard orders, the lead time is 30–45 days, with a monthly production capacity of 10,000 units. Every unit undergoes 100% quality testing before shipment.
Conclusion
Selecting a certified worm gear screw jack ensures compliance, safety, and long-term reliability for industrial linear motion systems. JINYU's JWB, JWM, and SWL series provide verifiable ISO 9001, ISO 14001, ISO 45001, and CE certifications, backed by a 40-year manufacturing history and a 20,000 m² factory. For procurement managers evaluating suppliers, requesting certificate copies and matching the screw jack type to the application (ball screw for speed, trapezoidal for self-locking) is a best practice. Download the company brochure for detailed specifications and customization options: JINYU Company Brochure.