TONE Electric Wheel Digitorqon (ETW71D Series)
The TONE ETW71D Series is the Digitorqon-equipped version of TONE’s electric wheel wrench for large commercial vehicles — delivering precision torque-controlled tyre nut tightening with real-time torque measurement and verification built in. Three models cover lever-type and cup-type configurations across JIS and New ISO bolt patterns, all with a 350–700 N·m torque range. Calibration certificate included as standard. Supplied with Digitorqon unit, matching square drive unit, and metal case.
More Information
The TONE ETW71D Series does everything the ETW71 Series does — and then confirms it. Real-time Digitorqon torque measurement is built directly into the tool, so every wheel nut is tightened to spec and verified in a single operation.
Why the ETW71D Series
The standard ETW71 Series delivers accurate, repeatable torque-controlled wheel nut tightening through automatic shut-off. The ETW71D Series goes a step further — an integrated Digitorqon unit measures and displays the actual applied torque as you work, giving the operator immediate confirmation that each nut has been correctly torqued.
For operations where compliance, liability, or documented wheel safety is a consideration — fleet operators, commercial transport workshops, public transport authorities — this removes the need for a separate post-tightening torque check. The calibration certificate supplied with every unit supports audit and compliance requirements from day one.
The three models mirror the ETW71 Series configuration: a lever-type unit for variable bolt spacing (ETW71LD) and two cup-type units for JIS (ETW71C68D) and New ISO (ETW71CD) wheel patterns, all sharing the same base wrench and torque range.
Key Features
- Integrated Digitorqon torque measurement — real-time torque display during tightening; no separate verification step required
- Automatic torque shut-off — stops precisely at the preset torque value on every nut
- Calibration certificate included — supplied as standard with every unit for compliance and audit
- Modular square drive unit system — one wrench base pairs with three drive units for lever and cup-type wheels
- Covers JIS and New ISO patterns — cup-type units for 6 & 8 hole (JIS) and 8 & 10 hole (New ISO) wheels
- Lever-type unit for variable bolt spacing — suits 90–120 mm spacing between bolts
- ±5% repeat tightening accuracy — under consistent conditions
- Dual inspection schedule — wrench requires service every 6 months or 30,000 cycles; Digitorqon requires service annually or every 10,000 cycles
Typical Applications
- Large bus and coach tyre service requiring documented torque compliance
- Heavy truck and freight vehicle wheel maintenance
- Public transport and fleet operators with safety audit requirements
- Commercial workshops where wheel nut torque records are required
Range Overview
| Model | Square Drive Unit | Suitable Wheel Type | Total Weight (kg) |
|---|---|---|---|
| ETW71LD | TW7L | Lever type — 90–120 mm bolt spacing | 8.4 |
| ETW71C68D | TW7C68 | Cup type — 6 & 8 hole wheel (JIS) | 9.9 |
| ETW71CD | TW7C | Cup type — 8 & 10 hole wheel (New ISO) | 9.5 |
All models include the ETW71 power unit with integrated Digitorqon (DT7TWT). Calibration certificate and instruction manual included as standard.
📊 Specifications — TONE ETW71D Series Electric Wheel Wrench with Digitorqon
| Spec | ETW71LD | ETW71C68D | ETW71CD |
|---|---|---|---|
| Square Drive Unit | TW7L | TW7C68 | TW7C |
| Suitable Wheel | Lever type, 90–120 mm bolt spacing | Cup type, 6 & 8 hole (JIS) | Cup type, 8 & 10 hole (New ISO) |
| Torque Range (N·m) | 350 – 700 | 350 – 700 | 350 – 700 |
| No-Load Speed (rpm) | 19 | 19 | 19 |
| Voltage | 100V single-phase | 100V single-phase | 100V single-phase |
| Max Current (A) | 14.5 | 14.5 | 14.5 |
| Max Power (W) | 1,400 | 1,400 | 1,400 |
| Total Weight (kg) | 8.4 | 9.9 | 9.5 |
| Drive Size | 25.4 mm (1″) sq. | 25.4 mm (1″) sq. | 25.4 mm (1″) sq. |
| Repeat Accuracy | ±5% | ±5% | ±5% |
| Digitorqon Unit | DT7TWT | DT7TWT | DT7TWT |
| Calibration Certificate | Included | Included | Included |
Note: Two separate inspection schedules apply — the electric wheel wrench requires service every 6 months or 30,000 cycles; the Digitorqon unit requires service annually or every 10,000 cycles. Both are chargeable services. Calibration certificate validity: up to 1 year from issue date, or up to 1 year from first use if used after 1 year from calibration date — maximum 10,000 cycles. Contact HTC for servicing details.
All models: 100V single-phase · 50–60 Hz · Cord weight not included in total weight · Digitorqon torque display included
Supplied accessories by model:
- ETW71LD — Square drive unit (TW7L), dual opening impact socket (8ED-4121A), Digitorqon (DT7TWT), calibration certificate, instruction manual, metal case
- ETW71C68D — Square drive unit (TW7C68), dual opening impact socket (8ED-4121A), Digitorqon (DT7TWT), calibration certificate, instruction manual, metal case
- ETW71CD — Square drive unit (TW7C), tire socket for impact (8A-33T), Digitorqon (DT7TWT), calibration certificate, instruction manual, metal case
