The Makita XAG23ZU1 is a 36V (18V X2) brushless 9 in. paddle-switch grinder combining the scale of the XAG13Z1 with AWS (Auto-Start Wireless System) for automated dust extraction. Running at 6,000 no-load RPM with an electric brake stopping the heavy 9 in. disc in 4.5 seconds or less, the XAG23ZU1 is built for the most demanding concrete prep, heavy-plate steel grinding, and large-scale surface coating removal where integrated dust management is required. Tool only — batteries and charger sold separately.
What distinguishes the XAG23ZU1 from the XAG13Z1?
Both are 36V (18V X2) brushless 9 in. paddle-switch grinders with electric brakes. The XAG23ZU1 adds AWS (Auto-Start Wireless System), automatically activating and deactivating a compatible Makita dust extractor via Bluetooth in sync with the grinder trigger — a critical feature on regulated jobsites with silica dust exposure requirements.
Is the XAG23ZU1 appropriate for OSHA Table 1 silica compliance?
When paired with a compatible AWS-enabled Makita dust extractor that meets the required airflow and filtration rating for a 9 in. grinder on concrete, the XAG23ZU1 is designed to fulfill engineering control requirements. Always verify the extractor specifications against OSHA Table 1 for your specific task.
Why does a 9 in. grinder run at only 6,000 RPM?
The outer edge of a 9 in. disc spinning at 6,000 RPM travels at approximately 14,000 surface feet per minute — similar to a 5 in. disc at 8,500 RPM. The larger disc's higher inertia also makes lower RPM safer for operator control at this tool weight. Additionally, most 9 in. grinding wheel ratings specify a maximum of 6,600 RPM or similar, matching the tool's output.
How do I run this grinder without purchasing a kit? What batteries are required?
You need two Makita 18V LXT batteries. Both BL1850B (5.0Ah) and BL1860B (6.0Ah) packs are suitable; higher-Ah packs extend runtime under heavy load. Insert one battery in each of the two slots on the grinder body — the tool connects them in series internally for 36V output.
Can I use the XAG23ZU1 for large-area concrete floor grinding?
Yes, the 9 in. disc is well-suited to concrete floor prep — coating removal, light surface leveling, and surface opening before coatings are applied. For a full floor-grinding application, the wide AWS-compatible dust shroud (if available as an accessory) and a compatible Makita extractor will meet dust control requirements.
# Makita 18V X2 LXT (36V) Brushless 9 in. Paddle Switch Cut-Off/Angle Grinder with Electric Brake and AWS (Tool Only) **Model:** `XAG23ZU1` **Brand:** Makita **Category:** Angle Grinder > The Makita XAG23ZU1 is a 36V (18V X2) brushless 9 in. paddle-switch grinder combining the scale of the XAG13Z1 with AWS (Auto-Start Wireless System) for automated dust extraction. Running at 6,000 no-load RPM with an electric brake stopping the heavy 9 in. disc in 4.5 seconds or less, the XAG23ZU1 is built for the most demanding concrete prep, heavy-plate steel grinding, and large-scale surface coating removal where integrated dust management is required. Tool only — batteries and charger sold separately. ## Specifications | Attribute | Value | |---|---| | Product Type | Angle Grinder | | Voltage | 36 | | Platform | LXT X2 | | Disc Diameter In | 9 | | No Load Rpm | 6,000 | | Spindle Thread | 5/8 in.-11 | | Brushless | Yes | | Tool Only | Yes | | Battery Included | No | | Charger Included | No | | Weight (lbs) | 13 | | Warranty | 3-year limited | ## What's Included - angle grinder - wheel guard - side handle Source: https://www.jaspecs.com/makita/angle-grinder/xag23zu1-makita-18v-x2-lxt-brushless-9-in-angle-grinder-tool-only/