ROUGHNESS COMPARATOR

Name: ROUGHNESS COMPARATOR
Brand: BUILDQUICK MACHINERY COMPANY
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ROUGHNESS COMPARATOR Specification

Resolution
Not applicable (visual/tactile reference)

Hardness
Standard steel or equivalent

Humidity
5% to 90% RH (non-condensing)

Number of Specimens
12 specimen surfaces

Mounting Type
Portable, handheld

Temperature
0C to 50C (operating)

Frequency
Unlimited (manual usage)

Response Time
Immediate (visual/tactile)

Test Range
Ra 0.05 to 3.2 m (microns)

Accuracy
Surface finish value reference as per standard

Max Height
Approx. 10 mm

Equipment Type
Roughness Comparator

Display Type
No display

Application
Industrial

Features
Portable, Durable, Easy to use, Reference master

Specimen Size
Approx. 30 x 50 mm each specimen

Automation Grade
Manual

Measuring Range
Ra 0.05 - 3.2 m

Usage
Surface roughness comparison

Capacity
12 Comparison Surfaces

Machine Weight
Approx. 200 g

Test Speed
Manual operation

Test Width
Standard 25 mm

Control Mode
Manual

About ROUGHNESS COMPARATOR

These two comparators are specially designed to check the roughness of steel surfaces which have been blast cleaned to cleanliness grades SA 2.5 and SA 3 in preparation for painting.

They conform to ISO 8503.

Comprehensive Surface Comparison

The roughness comparator features 12 specimen surfaces representing a variety of machining finishes such as turned, milled, ground, and lapped. These provide a practical reference standard, adhering to major ISO, JIS, and ANSI specifications. Each specimen is crafted from high-grade steel for accuracy and longevity, making it suitable for diverse applications in quality control or manufacturing environments.

Portable and User-Friendly Design

With its lightweight construction (approx. 200 g) and handheld, portable form factor, the comparator is easy to carry and operate directly at the inspection site. Packaged in either a plastic or wooden box, it stays protected while remaining convenient for storage and transport. Its manual operation requires no electricity, digital displays, or maintenance, offering dependable performance at any time.

Immediate and Reliable Assessment

Engineered for manual use, the RC-32 enables immediate surface finish comparison, utilizing visual and tactile reference rather than electronic measurement. Its test range spans Ra 0.05 to 3.2 m, covering the most common industrial roughness grades. This ensures rapid evaluation and increased efficiency for inspectors evaluating parts, components, or production processes.

FAQ's of ROUGHNESS COMPARATOR:

Q: How do I use the ROUGHNESS COMPARATOR RC-32 to compare surface finishes?

A: To use the RC-32, select one of its 12 specimen surfaces that closely matches your workpiece finish type (turned, milled, ground, or lapped). Place your sample adjacent to the relevant specimen and compare the tactile or visual texture to estimate the roughness value (Ra) as per the provided reference standard.

Q: What is the main benefit of using this roughness comparator in industrial settings?

A: The primary benefit is quick and reliable surface finish assessment without the need for electronic gauges. It allows operators to reference standardized surface textures immediately, ensuring quality control while saving time during inspections.

Q: When is it appropriate to use this comparator rather than digital roughness testers?

A: This comparator is ideal for routine inspections, training, or situations where portability and speed are crucial. It is especially valuable when only a quick reference is needed rather than precise digital measurement, or where electronic equipment is impractical.

Q: What materials and surface types can I assess with the RC-32?

A: The comparator is crafted from high-grade steel and covers 12 comparison types, including turned, milled, ground, and lapped surfaces, compliant with ISO, JIS, and ANSI standards. It is suitable for a wide range of metal and manufactured parts.

Q: Where should the comparator be stored when not in use?

A: For best equipment preservation, store the comparator in its provided packaging-either a plastic or wooden box-in a clean, dry environment within the recommended humidity and temperature range (0C to 50C, 5% to 90% RH non-condensing).

Q: How accurate are the roughness values obtained with this device?

A: The RC-32 provides surface finish values as a reference according to established standards, ensuring consistent and repeatable comparisons. Accuracy relies on the quality of reference specimens and user proficiency with visual and tactile evaluations.

Q: Is there any maintenance required for this manual comparator?

A: Routine wiping to remove dust and fingerprints is sufficient for maintenance. No calibration or electronic servicing is necessary due to its purely mechanical, reference-based operation.

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