Screw Holding Force Test/Wood Panels Test Equipment/Wood Tester/Nail Grip Test

Min.Order: 1

Product origin: Dongguan, Guangdong, China

Infringement complaint:

Complaint

US$ 345

Description

principle:

The grip strength of a nail refers to the force required to pull the nail out of wood. When a nail is driven or twisted into wood, the surrounding wood fibers are compressed or partially severed, creating pressure on the side of the nail where the wood fibers are separated. When the nail is pulled out of the wood, frictional forces act on the side of the nail. This frictional force is influenced not only by the type, diameter, and shape of the nail but also by factors such as the direction of the wood grain, density, and moisture content of the wood. The standard method for measuring wood grip strength typically involves using the same type of nail, driving or inserting it into the face, edge, or end of wood specimens to a specified depth, and then conducting a pull-out test on a tensile testing machine at a uniform loading rate. The measured force can be used to compare the grip strength of different tree species, grain orientations, and densities, among other factors.

Device Description:
>Multiple test types: The tester can measure stress, strain, elongation, tear strength, peel strength, shear strength, yield point, modulus of elasticity, etc. Can memorize 50 sets of test data.
>Set the test speed, direction and stop mode. Once set up, testing is just a push of a button away. It can be set to return automatically after the test is completed.
>Various ports: connect printers and export data directly. Or use the software on the UTM to control the UTM, display curves or data analysis.
>Precision transmission system: servo motor drive, double ball screw, timing belt, etc.
>Protection: upper and lower limit protection, emergency stop, overload protection, over-travel protection.

Wood nail gripping fixture is in the wood material industry testing, generally refers to the nail into the plate, whether the nail is easy to fix the nail hole, whether it is easy to loose off, the nail holding force of the plate is strong, the nail is not easy to loose off, the nail hole can be used repeatedly, and vice versa, generally the nail holding force is good, eat the nail force is poor. Wood needs a special testing instrument to test, wood nail force tensile tester is a kind of electronic tensile testing machine, supporting a special nail force detection fixture can be tested.

Illustration of Machine Connected with Fixture:

Usage method:

1,Prepare the test specimen: The test specimen is a rectangular piece of wood with dimensions of 150mm × 50mm × 50mm, with the length aligned in the direction of the grain.
2,Prepare the test nails: The test nails are regular low carbon steel screws with a nail shaft diameter of Φ2.5mm and a nail length of 45mm. Do not use nails with defects such as rust, bent tips, or damaged threads. Each nail should be used only once.
3,Clean the test nails and mark them at a distance of 30mm from the nail tip.
4,On any face, any edge, and both ends of the specimen, perpendicular to the surface of the specimen, use a tool to screw the test nail into the indicated position on the wooden illustration below, aligning the surface of the wood with the marked line on the nail. Allow for a tolerance of up to 1mm. In the case of harder wood or specimens prone to bending due to difficulty in nailing, pre-drill a guide hole with a diameter of approximately 1.8mm and a depth of about 20mm at the corresponding position on the specimen, and then screw the nail into the specimen until it reaches the marked point. If the wood cracks during the process of screwing in the nail, select a new specimen with the same characteristics.
5.Place the wooden specimen with the nail in the lower fixture and slowly raise the fixture using the machine's control. This will allow the grip nail fixture to securely hold the nail head. Once the wood separates from the lower fixture base (indicated by the arrow in the diagram below), zero the force value on the machine. Control the machine to ascend at a speed of 2±0.5mm per minute to extract the nail until the load force reading on the machine shows a significant decrease, then stop.
6,After the test, immediately cut a wooden block from the middle of the specimen with dimensions of approximately 50mm × 50mm × 10mm (aligned with the grain direction). Determine the moisture content of the wood sample according to the GB/T 1931 standard (Note: The machine being used does not support testing the moisture content of the wood sample).
7,Upon completion of the test, record the test data and results.

Technical Parameter:

Wood Nail Grip Force Test Fixture
Model	HC-1021-10
Material	45 steel electroplating treatment
Appearance	Overall U-shape
Size error	0.1mm
Weight	10kg

Other test fixtures

HC-1021D1-1 Three-point bending fixture1

Three-point bending fixture 1
Model	HC-1021D1-1
size	500mm W x 2000mm L
Upper pressure head diameter	50.8mm

HC-1021D1-2Three-point bending fixture 2

Three-point bending fixture 2
Model	HC-1021D1-2
Compression surface size	100mmX76mm
hardness	90

HC-1021D2 shear test fixture

shear test fixture
Model	HC-1021D2
Thickness	20-50mm
Width	50mm
Length	200--320mm
The material of the cutting edge needs heat treatment, and it must not be chamfered, and a lifting handle is added.

HC-1021D3 Hardness test flextural

Hardness testing fixture
Model	HC-1021D3
Shaft diameter	12.7mm
shape	round head
1000lbf fixed pressure.
Hardness test fixture, material through heat treatment.

HC-1021D4 Four point bending fixture

Four point bending fixture
Model	HC-1021D4
Bottom Beam Length	2m
Upper Beam Length	1m
Pivot Width	500mm
Heat treatment of four indenters

If you have new requirements, please contact the technical section,Senior engineer to provide you with the most authoritative product testing scheme

Q1:Is your company a trading one or a factory?

A1:Our factory produces goods directly. We have focused on the development and manufacturing of physical and environmental testing equipments for 18 years,besides,we have export experience of six years.

Q2:What about the quality of services and products?

A2:Berore shipping and delivering the goods,each product must be tested and tested for 100% .

Products using training: we would provide a training video of each product in order to show you how to install and operate.

All products meet the standsrds of ISO, ASTM, AATCC, BS, EN, DIN, JIS, GB and other requirements.

Q3:How long is the delivery time?

A3:Usually about 15 to 25 days.If we have stock, we can arrange the shipment within 3 days.

Kindly note that our producing and delivery time depend on specific item and the number of it.

except for the special customization.

Q4:Distance transportation, the packaging is strong enough?

A4:Packing: the first layer uses bubble film ,and the second layer uses vacuum film.We take away the air so as to make a vacuum environment after packing,which can avoid the problem of rust on the rough sea,and the outer packing using standard wooden cases.

Q5: What is the mode of payment?

A5: Generally we use telegraphic transfer,inculding 50% deposit and 50% before shipment.Other payment methods can be negotiated.

Q7:How warranties and after-sales services?

A7:Our products have 18-month warranty.

Life-long free technical support, be video through email.Besides, we can help you to repair your problem controller , even it's not from our factory Produce.

What you need to do is to send us the controller.

Outside the warranty period, professional after-sales service team will provide the perfect technical support, and help customers to solve problems when using our products, deal with guest problems and complaints, and in a professional and timely.

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