Name: TOHNICHI RNTD500CN (RNTD series) tua vít định lực trước ( 200~500 cN·m)
Brand: TOHNICHI
SKU: RNTD500CN
Price: 4268000 VND
Availability: InStock

TOHNICHI ; Japan

Click Type Torque Screwdriver RNTD series

Model: RNTD500CN

The Tohnichi RNTD series Click Type Torque Screwdriver The Tohnichi RNTD series is a high-precision, preset click-type torque screwdriver designed for high-volume assembly lines and maintenance where consistency is critical.Unlike adjustable screwdrivers with a visible scale, the RNTD series has its torque value locked internally, making it the primary choice for “error-proofing” (Pokayoke) in professional manufacturing.

Rotary-Slip (Cam-Over) Mechanism: When the target torque is reached, the tool “clicks” and then slips (ratchets freely). This means that even if the operator keeps turning the handle, no additional torque is applied, making it impossible to over-tighten.
Tamper-Proof (Preset): There is no external scale. To change the torque, you must use a specific adjusting key and a torque tester (like the Tohnichi TDT3-G). This ensures that only authorized personnel can change the tool’s settings.
Extreme Durability: It uses Tohnichi’s proprietary toggle clutch mechanism, which reduces wear and maintains ±3% accuracy over a much longer lifespan than standard spring-click drivers.

The RNTD series is equipped with Tohnichi’s own toggle mechanism for torque control.

Mass Production Assembly: Ideal for workers on a production line who need to tighten thousands of small screws to the exact same torque without the risk of accidentally changing the setting.
Precision Electronics: Used extensively in assembling laptops, smartphones, and medical devices where even slight over-tightening could damage sensitive components.
High-Reliability Maintenance: Ensuring critical fasteners in automotive or aerospace sensors are tightened to strict specifications.

Specifications

Accuracy: ± 3% of the set value.
Mechanism: Rotary-slip (clutch ratchets freely once torque is reached to prevent over-torquing).
Bit Type: Accepts standard 1/4″ (6.35mm) hex bits.
Standard Compliance: Meets ISO 6789 Type II Class E

◆ How to order The Tohnichi RNTD Series consists of preset, rotary-slip torque screwdrivers designed to prevent over-tightening. Because they are “preset” models, they have no external scale and require a torque tester. Specify Tohnichi, model name and torque value. Example 1: Tohnichi RNTD500CN X Torque Free Example 2: Tohnichi RNTD500CNX250cN・m

Pic.: Tohnichi RNTD500CN is a professional-grade, preset rotary-slip torque screwdriver (200 – 500 cN·m) at Semiki’s warehouse The Tohnichi RNTD500CN is the highest-capacity preset rotary-slip torque screwdriver in the RNTD series. Designed for heavy-duty repetitive assembly and manufacturing, it features a specialized slip mechanism that prevents over-tightening and an added auxiliary handle to help operators manage the higher torque load comfortably.

Accessories

Torque Adjusting Bar: Required to change the internal torque setting.
Auxiliary Handle: Included only with the RNTD500CN to provide better leverage at higher torque levels.
Resin Grips: Standard on RNTD120CN and RNTD260CN for improved operator comfort.

Maintenance and calibration : ► We also have calibration certificate attached ( optional ) ► Please re-calibrate after use for a certain period through our purchase store. Local Vietnam : SEMIKI Ins