Length Comparator Digital Manufacturer,Supplier and Exporter in India

Length Comparator Digital (Product Code: SLE/CE/20) is a bench measuring frame used to record small changes in the length of mortar and concrete specimens in materials testing laboratories. It locates the specimen on 6.5 mm diameter balls or other reference points, reads length on a gauge graduated to 0.002 mm over 5 mm, and can take an electronic dial gauge when requested at the time of order. Jain Scientific Equipments Pvt Ltd (ScienceLab) produces it as the OEM at its own factory in Ambala, India.

Specifications

What Is the Length Comparator Used For?

A length comparator measures a specimen between two fixed reference points, usually balls or studs cemented into the ends of a mortar or concrete bar. The specimen sits in the recessed seating on the base while the gauge on the adjustable cross plate bears on the upper reference point, so the same length can be re-measured accurately over days or weeks of drying, wetting or expansion testing.

Before each series, set the reading with the stainless steel standardisation bar and hold it only by its insulated grip so hand warmth does not change its length. Laboratories that prefer digital measuring instruments in India can ask for the electronic dial gauge instead of the standard dial, but it must be stated when ordering.

What to Specify When Ordering

• Base style: channelled or round.
• Gauge type: the standard dial gauge reading to 0.002 mm × 5 mm, or the optional electronic dial gauge.
• Reference points used in your specimens: 6.5 mm diameter balls or another type of cemented reference point.
• Number of comparators needed for your specimen programme.

OEM Manufacturer

Jain Scientific Equipments Private Limited, trading as ScienceLab, manufactures the Length Comparator Digital as an OEM product at its licensed factory at Saha, Ambala, Haryana. Because the comparator comes straight from the original equipment manufacturer, questions about the base style, the electronic gauge option or later replacement parts go to the team that makes it. Schools of engineering, testing laboratories, dealers and importers are all supplied factory-direct. See the ScienceLab company profile for company details.

Related Civil Engineering Lab Equipment

Specimen casting, conditioning and measurement all feed into the same length-change results; these related items fill the other steps.

• Volume Change Apparatus — a complete set with mould, reference pins and comparator frame.
• Prism Mould Three Gang — for casting mortar prisms to be measured.
• Demountable Mechanical Strain Gauge — for length variation on larger elements.
• Humidity Chamber — for conditioning specimens between readings.
• Cement curing bench-type cabinet — for curing specimens before measurement.

The Civil Engineering Lab Equipment category lists further apparatus for cement, concrete and soil laboratories.

Frequently Asked Questions

What does the Length Comparator Digital measure?
The Length Comparator Digital measures small changes in the length of mortar or concrete specimens between two reference points, such as 6.5 mm diameter balls cemented in the ends. Repeated readings show shrinkage or expansion over time.

Does the Length Comparator Digital come with an electronic gauge?
The Length Comparator Digital is listed with a dial gauge reading to 0.002 mm × 5 mm. An electronic dial gauge can be supplied as an optional extra, but only if it is indicated at the time of placing the order.

What base options does the Length Comparator Digital have?
The Length Comparator Digital is built on a channelled or a round base carrying two vertical pillars and an adjustable cross plate. State which base you prefer in your enquiry so the quotation matches your laboratory layout.

What is the standardisation bar used for on the Length Comparator Digital?
The stainless steel standardisation bar sets the reference reading of the Length Comparator Digital before specimens are measured. Its insulated grip stops hand warmth from changing the bar length, which matters when readings are taken to 0.002 mm.

Who manufactures the Length Comparator Digital?
The Length Comparator Digital is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM at its licensed factory in Saha, Ambala, Haryana, India, and is supplied factory-direct to institutions, dealers and importers.

Can a calibration certificate be provided with the Length Comparator Digital?
Whether a calibration certificate can accompany the Length Comparator Digital should be discussed with us before you order. Mention it in your enquiry on the contact page so it is covered in the quotation.

Request a Quote

Ask for a quotation on the Length Comparator Digital (SLE/CE/20) through the contact page or the enquiry cart, stating the base style and gauge type you need. The quote comes direct from the manufacturer, Jain Scientific Equipments Pvt Ltd (ScienceLab).

Last updated: 24 September 2026