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GLOBETREK ENGINEERING CORPORATION
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Spring Type Proctor Needle

Spring Type Proctor Needle Specification

Temperature
Ambient

Mounting Type
Handheld

Display Type
Dial Gauge

Product Type
Spring Type Proctor Needle

Application
Field and laboratory determination of soil compaction/proctor value

Measuring Range
0-40 kg/cm2 (depends on supplied needle)

Response Time
Immediate (mechanical)

Color
Sliver

Automation Grade
Manual

Material
Stainless Steel

Features
Portable, hand operated, easy-to-read dial

Equipment Type
Soil Testing Instrument

Max Height
Practically manageable by hand, varies as per model

Interface Type
Manual

Number of Specimens
Single specimen at a time

Test Range
0-40 kg/cm2 (varies by model)

Humidity
Ambient

Accuracy
0.5 kg/cm2

Usage
Industrial

Resolution
0.25 kg/cm2 (typical, varies by dial gauge)

Specimen Size
Typically 1/30, 1/13.33, and other standard soil compaction mold sizes

Power Supply
Electric

Capacity
Wide range of needle sizes/capacities (small and large)

Machine Weight
Approx. 500 g

Test Speed
Manual operation

Test Stroke
Up to 60 mm (approximate needle travel)

Control Mode
Hand Operated (Spring Type)

Packing
Fitted carrying case

Finish
Corrosion resistant

Calibration
Factory calibrated, recalibration possible

Body Material
Metal (chrome plated steel body and handle)

Needle Types
Supplied with interchangeable needles and weights

Dial Size
65 mm diameter (approx.)

Spring Type Proctor Needle Trade Information

Minimum Order Quantity
1 Number

FOB Port
Navi Mumbai

Payment Terms
Telegraphic Transfer (T/T)

Supply Ability
10 Per Week

Delivery Time
3 Week

Sample Policy
Sample costs shipping and taxes has to be paid by the buyer

Main Export Market(s)
Africa, Central America, South America, Western Europe, Middle East, Eastern Europe, Asia, North America, Australia

Main Domestic Market
All India

About Spring Type Proctor Needle

The Instrument consist of needle attached to a spring loaded plunger. The stem of which is calibrated to read 0 to 40 kgs in 1 kg division. Long stem is graduated at every 12.5mm to read depth of penetration and for use with needles of larger areas. The small penetration steam is also graduated in 12.5mm division and is used with needles of smaller areas. Needle points one each of 0.25, 0.5, 1.0,1.5,2.0, 3.5, and 6.0 sq.cm. and one tommy pin is supplied. Complete as above in a wooden carrying case.

Accurate Soil Compaction Testing

Engineered specifically for Proctor soil compaction tests, this spring type proctor needle delivers reliable, repeatable measurements. Its manual operation mode and mechanical dial gauge provide immediate feedback, making it well-suited for both professional laboratories and field engineers.

Rugged and User-Friendly Design

With a robust stainless steel and chrome-plated steel construction, the device resists corrosion and endures rigorous usage environments. The lightweight, handheld design and fitted carrying case enhance portability while interchangeable needles allow adaptation to various soil specimens and test standards.

Versatile Application & Calibration

Supporting a range of needle sizes and capacities, the tool accommodates diverse soil compaction mold dimensions. It arrives factory calibrated and can be recalibrated when necessary, ensuring accuracy for prolonged use in varying conditions and across multiple projects.

FAQ's of Spring Type Proctor Needle:

Q: How is the Spring Type Proctor Needle used for soil compaction tests?

A: The device is pressed manually into a soil specimen using an appropriate needle size and weight. The dial gauge indicates the pressure required to penetrate the soil, revealing its compaction value for field or laboratory analysis.

Q: What is the calibration process for this instrument?

A: The proctor needle is factory calibrated for immediate precision. If recalibration is required, it can be performed using standard calibration weights and procedures to ensure ongoing accuracy during repeated use.

Q: When should different needle sizes or weights be selected?

A: Needle size and weight choices depend on both the compaction mold size and soil type being tested. Select the configuration matching your test standard or specimen, as outlined in soil compaction test protocols.

Q: Where can the Proctor Needle be effectively used?

A: This instrument is suitable for both laboratory settings and on-site field work, due to its portability and rugged construction. The carry case and corrosion-resistant finish ensure durability across varied environments.

Q: What benefits does manual, spring-type operation provide?

A: Manual (hand-operated) control allows precision by giving users immediate feedback on compaction force via the dial gauge. This straightforward method enables quick response and adjustment without dependence on electronic components.

Q: How can accuracy of readings be maintained over time?

A: Regular recalibration, correct needle selection, and adherence to ambient storage and usage conditions help maintain measurement accuracy, as does periodic cleaning of mechanical parts.

Q: Can this device be used for all standard soil compaction mold sizes?

A: Yes, the wide selection of interchangeable needles and capacities enables testing with commonly-used molds, such as 1/30 and 1/13.33 sizes, as well as other standard formats.

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