DongCheng DCPB1288 | 20V Max 3/4" Cordless Brushless Impact Wrench (4.0Ah)

The DCPB1288 stands as one of the most powerful cordless impact wrenches in the DongCheng lineup. It is specifically engineered for heavy-duty applications that demand extreme torque. Powered by a high-efficiency Brushless Motor, it ensures superior performance and an extended service life. This tool is primarily utilized for fastening and loosening large bolts in trucks, heavy machinery, and structural steel construction.

II. Key Features

• Brushless Motor: Delivers higher power output and longer run-time per charge while eliminating the need for carbon brush maintenance.
• Ultra-High Torque: Features a maximum torque of 1,288 N·m, making it capable of tackling the most demanding industrial tasks.
• 3-Speed Selection: Equipped with three speed and torque settings for precise control tailored to the specific application.
• Smart Loosen Function: During the loosening process, the tool automatically stops or slows down once the nut is loosened to prevent it from flying off or falling unexpectedly.
• Heavy-Duty Design: Built with a rugged housing designed to withstand harsh environments and rigorous use on industrial sites.

III. Technical Specifications

• Battery: 20V MAX.
• Square Drive Size: 19.05 mm (3/4") — Note: This size is optimized for heavy-duty industrial use.
• No-load Speed:
  • Low: 900 r/min
  • Middle: 1,100 r/min
  • High: 1,500 r/min
• Impact Frequency:
  • Low: 1,200 ipm
  • Middle: 1,400 ipm
  • High: 1,800 ipm
• Torque Settings:
  • Low: 700 N·m
  • Middle: 900 N·m
  • High: 1,180 N·m
• Max Nut-Busting Torque: 1,288 N·m
• Net Weight: Approx. 3.4 kg (excluding battery).

IV. Operating Instructions

1. Installation: Insert a fully charged battery into the base of the tool. Mount the appropriate 3/4" impact socket.
2. Speed Adjustment: Use the electronic selector button on the base to choose the appropriate speed.
3. Fastening: Align the tool straight with the bolt and depress the trigger.
4. Loosening: Set the direction switch to "Reverse." Use "Smart Loosen" mode for controlled removal.
5. Maintenance: Regularly clear the ventilation slots and charge batteries periodically.

VI. Warranty

Includes a one-year maintenance warranty for peace of mind and reliable after-sales support.