Question 1

What is your minimum order quantity (MOQ)? Can I order samples?

Accepted Answer

There is no minimum order quantity for our standard products. You can order a single unit for evaluation or purchase in bulk.

Question 2

Are you a manufacturer or a trading company?

Accepted Answer

We are a manufacturer specializing in the research, development, and production of measuring instruments since 2008. We offer a wide range of instruments for industrial testing applications.

Question 3

How do you ensure product quality? Can you provide certificates?

Accepted Answer

Our instruments undergo quality inspections before shipment. Inspection reports and third-party calibration or testing certificates may be available upon request. Please contact us to confirm availability and any additional fees.

Question 4

What is your warranty and after-sales service policy?

Accepted Answer

Our instruments come with a 12-month warranty. We provide technical support and offer paid repair services after the warranty period.

Question 5

What are your payment methods, delivery terms, and lead times?

Accepted Answer

We accept payments in USD and CNY via T/T or Western Union. Our standard delivery terms include EXW and DAP. Lead times depend on product availability and order quantity. Please contact us for details.

Question 6

Do you offer OEM or customized products?

Accepted Answer

Yes, we offer OEM and customization services. Please contact us with your specific requirements to discuss available options.

Question 7

Are import duties and taxes included in the price?

Accepted Answer

Import duties and taxes depend on the destination country's regulations and are generally not included in the product price. We can provide the HS code for reference. Please consult your local customs authority for applicable charges.

Question 8

What is the LS255 Webster hardness tester?

Accepted Answer

The LS255 is a digital Webster hardness tester for aluminium alloy, brass, copper and mild steel. It uses a spring loaded indenter, gives a digital reading instead of a dial, holds the value automatically, and converts between HWA, HRE, HRF, HRB, HV and HB scales.

Question 9

What are the key specifications of the LS255?

Accepted Answer

Scales HWA, HRE, HRF, HRB, HV and HB, HWA range 0 to 20, resolution 0.1 HWA, accuracy within +/-0.5 HWA, repeatability 0.5 HWA, material thickness 0.6 to 8 mm, minimum inner diameter above 10 mm, 128 x 64 OLED, 3.7 V 400 mAh rechargeable battery, and Type C charging.

Question 10

Where is the LS255 commonly used?

Accepted Answer

It is used for aluminium profiles and extrusions, brass and copper fittings, thin sheet and mild steel section, especially in door and window fabrication, curtain wall production and non ferrous metal trading, where the classic Webster instrument is the established method.

Question 11

How does the LS255 differ from the LS256?

Accepted Answer

The LS255 is a Webster type tester with a spring loaded indenter and the HWA scale, which is the accepted method for aluminium and copper profiles. The LS256 is an ultrasonic contact impedance tester with a 20 N test force and a very small indent, which suits thin, small or coated parts and reports HV and HRC directly.

Question 12

How do I test an aluminium profile with the LS255?

Accepted Answer

Place the anvil on the opposite wall so that the material is supported, press the probe until it clicks, and read the HWA value. The wall must be between 0.6 and 8 mm, and the inner diameter must be above 10 mm so that the anvil fits inside the profile.

Question 13

How do I calibrate the LS255?

Accepted Answer

Use the one touch calibration on a reference piece of known hardness of the same alloy family, then verify with a second reference. Unlike a mechanical Webster tester, no disassembly or special tool is needed.

Question 14

Why is a digital Webster reading more reliable than a dial?

Accepted Answer

Because the dial requires the operator to read a small pointer at an angle, and the parallax and interpolation add error. A digital readout removes that source and holds the value after the impact, which matters when the instrument is used in an awkward position.

Product profile

Customization

Type

Measuring Range

Model NO.

Application

Warranty

Mobility

Calibrating Method

Rated Voltage

Support Language

Customized

Hardness Scales

Measurement Range

Resolution

Accuracy

Repeatability

Thickness of Measured Material

Inner Diameter of The Measured Material

Display

Power Supply

Charging Port

Size

Weight

Operating Temperature Range

Storage Temperature Range

Supply Voltage

Transport Package

Specification

Trademark

Origin

HS Code

Key features

Company profile

About Our Factory & Business Background

Our Production Capability & Technical Expertise

Our Industry Experience & Global Business Record

Our Certifications, Standards & Industry Recognition

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