ACD Dial Torque Wrench ±3% Precision 1-500N·m

Product Introduction

The ACD-Type Dial Torque Wrench is a premium precision measuring instrument engineered specifically for torque testing, quality control inspection, and high-accuracy fastener tightening. Unlike standard click-type torque wrenches, the dial-type display offers real-time torque reading with outstanding visual clarity. Equipped with a dual-needle system (main driving needle + follower/memory needle), this tool retains the peak torque value applied during testing, allowing inspectors to record readings easily after force is released. Covering ranges from 1 N·m to 500 N·m, it is an indispensable tool in laboratory, automotive, aerospace, and heavy industry quality assurance.

Product Features

High Accuracy: Provides precise torque measurements with excellent stability, ensuring consistent quality verification.

Grade 3 Precision Level: Built to Grade 3 precision standards with a strict error margin of within ±3%.

Dual-Needle Memory Function: The follower (memory) needle stays at the maximum torque applied, making post-test data recording simple and accurate.

Bi-Directional Measurement: Capable of measuring torque in both clockwise and counterclockwise directions.

Wide Industrial Application: Suitable for rigorous torque testing and inspection of high-precision critical fasteners.

Operating Instructions

Zero Adjustment Before Use: Turn the knob in the center of the dial counterclockwise so that the follower needle is close to the driving needle. Then rotate the outer dial ring so that the follower needle aligns precisely with the zero mark.

Socket Installation: Install a suitable drive socket onto the square drive head.

Applying Force: During use, apply force slowly and smoothly via the handle until the follower needle reaches your desired torque value.

Reading Torque: After releasing the force, the driving needle returns to zero automatically, while the follower needle remains at the peak position, allowing you to accurately read and record the torque just applied.

Product Specifications

Product No.	Size	Box/Ctn(pcs)	Gross/Net Weight(kg)	Ctn Size(cm)
BK-282001	1-30N·m	1/10	10.8/8.8	43.5×35×22
BK-282002	1-100N·m	1/10	12.8/10.8	43.5×35×22
BK-282003	60-200N·m	1/10	25/17.4	70×45×23.5
BK-282004	90-300N·m	1/10	25/17.4	70×45×23.5
BK-282005	150-500N·m	1/5	27/20	95×33×27
BK-282006	250-750N·m	1/5	27/20	95×33×27
BK-282007	300-1000N·m	1/5	44/37	95×33×27
BK-282008	600-2000N·m	1/5	44/37	95×33×27

Application 

Quality Control & Testing Labs: Checking bolt tension and joint torque in automotive, aerospace, and rail transit manufacturing lines.

High-Precision Machinery Assembly: Precision torque tightening for engines, wind turbine gearboxes, and medical equipment.

Fastener R&D: Destructive torque testing and joint friction coefficient testing in bolt laboratories.

Why Choose Us

Certified Calibration: Every wrench is calibrated individually to guarantee compliance with the Grade 3 (±3%) tolerance standard.

Durable Torsional Element: Uses high-fatigue-resistant alloy steel internal torsional shafts for consistent, long-term accuracy.

Protective Blow-Molded Case: Shipped in a rugged protective case to shield the sensitive dial mechanism from impact during transportation.

Factory-Direct B2B Pricing: Direct manufacturer sourcing ensures premium quality at competitive wholesale prices.

OEM & ODM Services

We support customized production for tool brand owners and measurement equipment distributors:

Custom Dual-Scale Dial: Customize dial faces with N·m, lbf.ft, or kgf.cm dual-unit scales.

Custom Branding & Color: Print your brand logo on the dial face, handle, and protective case.

Calibration Certificates: Factory or third-party calibration certificate options supplied upon request.

FAQ

Q1: How does the follower needle (memory needle) work?

A: As you apply torque, the main driving needle pushes the follower needle forward. When force is released, the driving needle returns to zero, while the friction-held follower needle stays at the maximum torque point reached, allowing hands-free reading.

Q2: What is the accuracy tolerance of this dial torque wrench?

A: The ACD-Type dial torque wrench meets Grade 3 accuracy standards, with a maximum error margin of within ±3% across its calibrated range.

Q3: Can this wrench measure torque in counterclockwise (left-hand thread) applications?

A: Yes! It measures torque accurately in both clockwise and counterclockwise directions.

Q4: How often should the wrench be recalibrated?

A: For standard industrial inspection, we recommend recalibrating the wrench once every 12 months or after 5,000 to 10,000 operations, whichever comes first.

Q5: What is the Minimum Order Quantity (MOQ) for OEM customization?

A: The standard OEM MOQ for customized dial branding and custom packaging is 100 to 200 units, depending on the torque range.