Dongcheng Impact Wrench 3/4 inch - DPB22C

• Manufacturer: Jiangsu Dongcheng M&E Tools Co., Ltd.
• Model: DPB22C
• Rated Power: 620 W
• Square Drive: 3/4 inch (19 mm)
• Max Fastening Torque: 588 N·m
• No-load Speed: 1,700 r/min
• Class: Heavy-duty corded impact wrench
• Net Weight: 5.0 kg

Dongcheng Impact Wrench 3/4 inch (DPB22C) is a heavy-duty 620 W corded impact wrench delivering up to 588 N·m through a 3/4-inch square drive. That is roughly three times the torque of the 1/2-inch DPB12, putting it in the class of tool used for structural steelwork, commercial vehicle servicing, and plant maintenance.

Bolts on structural connections and truck axles are torqued far beyond what a hand spanner or a light impact wrench will release, particularly once corrosion has set in. This machine is built for exactly that: high torque delivered in rapid impacts so the fastener breaks free without the reaction load going through the operator's wrists. Corded operation means the torque does not fade as a battery drains partway through a job.

Technical Specifications

Recommended Applications

1) How much more capable is this than the 1/2-inch DPB12?

Substantially. The DPB22C delivers 588 N·m against the DPB12's 188 N·m — over three times the torque — through a larger 3/4-inch drive. It's a different class of tool for structural and commercial work, not a general workshop wrench.

2) What sockets does it take?

It needs 3/4-inch square drive impact sockets. Your existing 1/2-inch sockets won't fit directly. Adapters exist but reduce torque transfer and can fail under this load, so buy 3/4-inch impact sockets rated for the job.

3) Is this too much tool for car wheel nuts?

Yes, for passenger cars. 588 N·m will happily snap wheel studs on a car. Use the DPB12 for car work; this machine is for trucks, buses, and structural fasteners.

4) Do I need a special power supply?

It runs on standard single-phase mains. On a long site extension lead, use adequately rated cable — undersized extensions cause voltage drop, which makes the motor run hot and shortens its life.

5) How should I hold it safely at this torque?

Use both hands and expect a significant reaction kick when a stubborn fastener breaks free. Keep your body out of the line of rotation, never operate it one-handed at full torque, and make sure the socket is fully seated before pulling the trigger.

1. Return within 24 hours of delivery for:
   • Damaged or defective product
   • Wrong or missing item
2. Product cannot be returned once installed or used
3. Refer to Refund Policy for complete details