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RB443T
Rebar Tying Tool up to 22mm x 22mm with 1.0 mm wire

The MAX RB443T "TWINTIER" is a professional battery-powered rebar tying tool designed for construction professionals who need faster, stronger, and more efficient rebar tying.
It delivers 0.5-second tying speed and up to 1.5× tighter ties*, helping improve tie strength and durability. The high-capacity wire system provides approximately 265 ties per wire coil for 10 mm × 10 mm rebar combinations and approximately 240 ties per coil for 13 mm × 13 mm combinations, reducing wire changes and downtime while improving productivity on the jobsite.
Developed by MAX, the original manufacturer of battery-operated rebar tying tools since 1993, the RB443T delivers consistent performance for concrete reinforcement, foundations, slabs, and other rebar applications.
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Quick Quotation
Applications
- Precast Concrete Plants
- General Concreting
- Steel Fixing
- Floor Heating
- Swimming Pool Construction
Features
- 0.5-Second Tying Speed
Tie rebar in just 0.5 seconds per tie, making the MAX RB443T up to 1.8× faster* than previous models. Faster tying helps reduce installation time and improve productivity on construction sites. - Up to 1.5× Tighter Ties
The Wire Pull Back Mechanism delivers up to 1.5× tighter ties*, improving tie strength and helping create more durable rebar assemblies. - Compact 12 mm Tie Knots*
The Wire Pull Back Mechanism reduces the tie knot length from 24 mm to 12 mm*. Shorter knots use less wire while maintaining secure rebar ties.
- High-Capacity Wire System
The RB443T produces approximately 265 ties per wire coil for 10 mm × 10 mm rebar combinations and approximately 240 ties per coil for 13 mm × 13 mm combinations. Fewer wire changes help reduce downtime and improve productivity throughout the workday. - Lower Operating Costs
Faster tying, efficient wire usage, and fewer wire replacements help reduce labor time and improve overall jobsite productivity, lowering operating costs. - Large Jaw Capacity
The large jaw design allows the RB443T to tie rebar combinations up to 22 mm × 22 mm, making it suitable for a wider range of reinforcing applications. - MADE IN JAPAN
Manufactured in Japan, the MAX RB443T combines precision engineering with strict quality control to deliver consistent performance, durability, and reliability for professional rebar tying applications. - NEW: Wire Load Assist
The Wire Load Assist system allows operators to replace tie wire without pressing the release button, making wire changes faster while reducing the chance of incorrect loading.
*Compared with Max RB398S and other conventional models
Specifications
WEIGHT | 2.5 (includes battery) kg |
|---|---|
DIMENSIONS | 295mm(H) x 120mm(W) x 330mm(L) |
MINIMUM TIES PER COIL | 170 |
MAXIMUM TIES PER COIL | 265 |
APPLICABLE WIRE PRODUCT/GA | TW1061T, TW1061T-PC, TW1061T-EG, TW1061T-S |
APPLICABLE REBAR SIZE | 10 x 10 - 22 x 22, up to 13 x 13 x 16 x 16(Unit: mm) |
TIES PER CHARGE | 5000 |
TIE SPEED | 0.5 sec |
TIE WRAPS | 1 wrap with double wire |
BATTERY CHARGE TIME | 80% charge in 60 minutes, 100% fully charge 80 minuets |
BATTERY | JPL91450A x 2 pieces |
CHARGER | JC925A x 1 piece |
Consumables / Accessories

Manuals
Owner's Manual
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