Products Description
- Compliant with JGJ/T23-2011, JJG817-2011 and ASTM/BS international standards; 2.207J standard impact energy, 10–60MPa strength range for C10–C60 concrete, engineered accuracy.
- Battery-free, non-destructive testing (NDT), one-click operation; lightweight & easy (2/3 less effort), one-hand use, instant results on site.
- Stainless steel body + high-tension precision spring, wear-resistant; accurate pointer friction (0.65±0.15N), stable readings, long-term durability.
- Large dial with direct reading, no calculation needed; non-slip body + smooth latching mechanism, beginner-friendly, minimizes human error.
- Nationally certified & traceable; widely used in buildings, bridges, roads, concrete structure quality control, global job site standard model.
Product Parameter (specification)
| Model | Standard model ZC3-A |
| Compressive strength range | 10 ~ 60 MPa |
| Applicable concrete grade | C10 ~ C50 |
| Impact energy | 2.207 J |
| Pointer length | 20.0 ± 0.2 mm |
| Pointer friction force | 0.65 ± 0.15 N |
| Radius of spherical end of impact rod | R25 ± 1.0 mm |
| Spring stiffness of impact tension spring | 785.0 ± 30.0 N/m |
| Tension spring extension length | 75 ± 0.3 mm |
| Tension spring working length | 61.5 ± 0.3 mm |
| Calibration value on steel anvil | 80 ± 2 |
Product Feature And Application
Compliant with JGJ/T23-2011, JJG817-2011 and ASTM/BS international standards; 2.207J standard impact energy, 10–60MPa strength range for C10–C60 concrete, engineered accuracy.

Stainless steel body + hightension precision spring, wearresistant; accurate pointer friction (0.65±0.15N), stable readings, longterm durability

Large dial with direct reading, no calculation needed; non-slip body + smooth latching mechanism, beginner-friendly, minimizes human error

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Shandong Surveying Information Technology Co., Ltd. is a professional manufacturer and one-stop supplier of surveying and mapping instruments, with nearly 20 years of industry experience. We specialize in the production of RTK receivers, automatic levels, total stations and theodolites, and also act as an authorized agent for multiple well-known industry brands, covering a full range of engineering surveying tools, measuring instruments and experimental equipment. We integrate production, global trade, technical support and after-sales service, committed to providing global customers with high-quality products and professional solutions. We look forward to cooperating with you!


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