Sdl Computer Controlled Steel Strand Relaxation Testing Machine

• Customization: Available
• After-sales Service: 3 Years
• Warranty: 3 Years
• Model NO.: SDL-300
• Type: Material Testing Machine
• Maxcapacity: <1000KN
• Accuracy Grade: 0.5
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Display: Digital
• Control: Computer Control
• Weight: 500-1000Kg
• Power Source: AC220V
• Oil Cylinder Position: Under
• Transport Package: Wooden Box
• Specification: 950×750×2850
• Trademark: Jinan East or Customized Logo
• Origin: China

Product Description

Product Model

SDL-300 Computer Controlled Steel Strand Relaxation Testing Machine

The SDL Series Microcomputer-Controlled Strand Relaxation Testing Machine is primarily used for relaxation testing of steel strands, capable of measuring uniaxial tensile relaxation strength and other properties of steel strands and other metallic wires.

It is widely applicable in quality inspection departments, construction companies, and steel strand/reinforcing bar manufacturers, serving as a modern testing apparatus for structural mechanics experiments.

Product Description

Key Configurations

The mainframe features a rigid four-column or dual-column structure, available in vertical or horizontal configurations. Screw-driven adjustment controls the crosshead movement, with infinitely variable loading speed settings.

Employs fully digital closed-loop microcomputer servo control. Utilizing Japanese Panasonic servo motors and drives, combined with high-precision sensors, it achieves high-accuracy, wide-range, and multi-functional servo control.

Directly measures specimen deformation within the gauge length, eliminating the impact of jaw slippage for high testing accuracy.

Computer & Software

Fully utilizes computer technology for presetting various parameters, automatic measurement, control, data processing, plotting various curves, and printing reports.

The testing software can automatically extrapolate the creep rate for 1000 hours.

Specification

Model	SDL-300	SDL-500	SDL-300W	SDL-500W
Maximum loading force (kN)	300	500	300	500
Force accuracy	±1 %
Force range	2 %–100 % of full scale
Force resolution	1 / 500 000
Extensometer range (mm)	0–10
Extensometer accuracy	±0.5 %
Gauge length (mm)	600
Max. tensile stroke (mm)	0–200
Pull-rod speed (mm/min)	0.01–50
Tensile space (mm)	800–1000
Frame type	Vertical	Vertical	Horizontal	Horizontal
Power (kW)	4.5	7.5	4.5	7.5
Overall dimensions (mm)	950 × 750 × 2850	1100 × 980 × 3400	2100 × 850 × 1400	2100 × 900 × 1600

Packing & Delivery

We pack the machine carefully and fix it tightly to make sure there is no shaking during the trip.
Sea shipping is handled by a professional logistics company.
Door-to-door delivery is available if you need it.

After Sales Service

Standard Warranty: 12 months.
Extended Warranty: Optional coverage up to 36 months.
Global Support: Technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

Jinan East Testing Machine Co., Ltd.

Jinan East Testing Machine Co., Ltd., with over 20 years of experience, designs and manufactures a full range of high-tech material testing machines. Supported by a strong R&D team and complete production facilities, we integrate advanced control technology and international standards to deliver reliable, user-friendly equipment. Our products are sold nationwide and exported worldwide, backed by ISO9001 certification and a commitment to continuous innovation and quality first.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
20 years experience

Pressure Testing Machine
Material Testing Machine
Customized Testing Machine
……

FAQ

Q: How should I choose the model?
Just simply tell us the material you wish to test or the test data required!
We will recommend the most suitable option for you.
 
Q: What's the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 30–45 days.
 
Q: Can I request a customized Specifications?
A: Absolutely! We offer tailored attachments and professional R&D teams.
 
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
 
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.