PROCTOR NEEDLES (SPRING TYPE) AZA0868

The AZA0868 Precision Proctor Needles (Spring Type) from Azalab are designed for rapid, on-site estimation of soil compaction and moisture condition. This portable instrument provides a practical alternative to full laboratory Proctor testing for preliminary assessment and quality control, particularly on cohesive and semi-cohesive soils encountered in embankments, subgrades, and trench backfills.

The instrument employs a calibrated, spring-loaded plunger to measure penetration resistance directly (0–40 kg range). Two graduated stems allow accurate tracking of penetration depth, while a comprehensive set of interchangeable needle tips enables testing across a range of soil densities and particle characteristics.


Applications

  • Field assessment of soil compaction
  • Estimation of optimum moisture condition
  • Subgrade, fill, and trench inspection
  • Construction quality control checks
  • Geotechnical and educational field investigations
SKU: AZA 0868 Category:
Description

Description

Key Features

  • Calibrated Spring Mechanism: Direct reading of penetration resistance up to 40 kg
  • Dual Graduated Stems: Long and short stems with 12.5 mm graduation intervals for depth control
  • Multiple Needle Tips: Seven interchangeable tips for varying soil conditions
  • Portable Design: Compact construction with a protective wooden carrying case
  • Rugged Build: Stainless steel / powder‑coated steel body suitable for site use

Specifications

Component Details
Load Range 0–40 kg
Stem Graduations Every 12.5 mm (long & short stems)
Long Stem Use Larger needle areas, deeper penetration
Short Stem Use Smaller needle areas, close‑range accuracy
Needle Points Included 0.25, 0.5, 1.0, 1.5, 2.0, 3.5, 6.0 cm²
Tommy Pin Included
Body Material Stainless steel / powder‑coated steel
Carry Case Wooden, foam‑lined interior

What’s Included

  • Spring‑loaded plunger with calibrated stem
  • Long stem and short stem with 12.5 mm graduations
  • Seven interchangeable needle points
  • Tommy pin for assembly and disassembly
  • Wooden storage and carrying case

Frequently Asked Questions (FAQ)

Q1: What is the load range of the AZA0868?
A: The instrument measures penetration resistance up to 40 kg.

Q2: Why are two stems provided?
A: The long stem is used with larger needle areas for deeper penetration, while the short stem is used with smaller needle tips for improved accuracy near the surface.

Q3: How is the instrument calibrated?
A: The unit is factory‑calibrated. Calibration certificates can be provided on request.

Q4: Is this suitable for sandy soils?
A: The AZA0868 is best suited for cohesive and semi‑cohesive soils. Results in clean, non‑cohesive sands may vary.

Q5: Is the instrument portable for site work?
A: Yes. It is compact and supplied in a durable wooden case for easy transport and field use.


AZA0868 – Precision Proctor Needles provide a fast, practical, and reliable method for estimating soil compaction and moisture condition directly at site, supporting efficient construction quality control and geotechnical decision‑making.