High Strength Rebound Test Hammer

• After-sales Service: Life Time
• Warranty: 12 Months Free
• Delivery Time: 2-3 Working Days
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: HT-450, 550, 1000
• Application: Concrete Strength Test
• Net Weight: 2kg
• Material Made: Stainless Steel
• Test Strength: 0-110MPa
• Impact Energy: 4.5j
• Calibration Certificate: Yes
• OEM: Yes
• Packing: Carton
• Shipment: Air, Sea, Land
• Transport Package: Carton Case
• Specification: HT-450, 550, 1000
• Trademark: SERVE REAL
• Origin: China
• HS Code: 9031809090
• Production Capacity: 500sets/Year
• Package Size: 48.00cm * 17.00cm * 13.00cm
• Package Gross Weight: 4.600kg

Product Description

The high strength rebound test hammer, also called as the Schmidt hammer, is used to test the strength of high-rise buildings structure components, bridges, and concrete components( board, beam, column, crane span structure. It's common modern building NDT equipment.   

 

 

Features

 

The guiding rod is made of high quality imported material, with high accuracy and abrasion-proof.

Ultrasonic aluminum enclosure prolong the tooling life;

External spring structure is easy for friction adjusting and also can guarantee uniform friction force between needle pivot and slider, thus to assure the instrument accuracy.    

HT-225 N TypeTest hammer / Rebound hammer / Schmidt hammer

Technical Specifications

 

Model	HT-450	HT-550	HT-1000
Standard energy	4.5J	5.5J	9.8J(1Kgf.m)
Strike spring stroke	106mm	100mm	140mm
Strike spring stiffness	900N/m±40 N/m	1100N/m	1000N/m
Test anvil calibration value	88±2	83±2	83±2
Net weight	3kg	1.28kg	3.5kg
Size	ф64×430mm	Φ54×350mm	Φ65×486mm
Strength testing range	20-110MPa	60-90MPa	50-80Mpa

Maintenance of the concrete rebound test hammer
In order to keep good accuracy, we should be careful in operation and storage. Daily maintenance is strong recommended.
1. Before put test hammer back to the suitcase after each test work, we should clear it; too much dirt will influence accuracy even make the instrument out of work.
2. Do not play test hammer for fun, or test unclear metal object.
3. Generally, clear the machine core is definitely good after long time use or after used in dirty place. Clear it by petrol or alcohol, and wipe watch oil on center pole, at the end, calibrate it on the steel anvil. During a large number of tests, we should keep regular maintenance.


SERVE REAL INSTRUMENTS is a professional manufacturer for concrete test hammers, including types of normal model HT-225, high strength model HT-450, HT-550, HT-1000; We also supply anvils for these test hammers calibrations. All the test hammers test strength curve are based on equivalent of 150mm3 concrete cubes.

 

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