4" 5" Air Angle Grinder 13500RPM LE-AG849A

Function
(1) Designed for removing rust smoothing welds, and blending of metal work
(2) Industrial grade for the super duty application, like construction, naval architecture
(3) Magnesium-Aluminum Alloy Housing
(4) Precise bevel gear with particular treatment increases durability and tool life. 
(5) Cylinder with heat treatment and surface precision ground increase tool life and smooth operation.
(6) The auxiliary handle provides more precision and comfortable control.

Super-Duty Industrial Power🏆

LE-AG849A Mg-Al Air Angle Grinder
The Lightweight Champion of Heavy Fabrication.

Engineering the future of naval architecture and heavy construction with the ultimate balance of Magnesium-Aluminum alloy durability and high-torque precision.

Mg-Al Advanced Alloy Body
11,000 RPM Free Speed
4"/5" Multi-Disc Support
Super Industrial Grade

The Primary Asset for Naval Architecture & Shipyards

In shipbuilding and heavy fabrication, tools aren't just used; they are pushed to the absolute limit. The LEMATEC LE-AG849A utilizes a Magnesium-Aluminum housing to solve the industry’s greatest challenge: providing heavy-duty grinding power without the debilitating operator fatigue of standard steel tools. This is a strategic acquisition for procurement officers seeking both performance and OHS compliance.

📦 Global Wholesale & Private Label Dominating the industrial sector requires brand authority. We offer comprehensive OEM/ODM support, allowing you to deploy the LE-AG849A under your premium brand with customized finishes.
🎬 High-Impact Technical Assets Eliminate marketing friction. Access our HD demonstration videos showcasing the grinder in high-corrosion naval environments, ready for immediate deployment on your B2B portals.
📈 Supply Chain Reliability Optimize your capital agility. Our Taiwan-based manufacturing hub supports validated technical samples and reliable bulk shipping schedules to meet global construction cycles.
🛡️ Engineering Depth Built with precision-machined bevel gears and heat-treated cylinders. We provide full transparency on technical specs to satisfy the most rigorous engineering audits.
"For shipyards and naval contractors, every hour of operator downtime is a bottleneck. We engineered the **LE-AG849A** using a Magnesium-Aluminum alloy precisely because it offers superior heat dissipation and weight reduction without sacrificing the structural integrity required to grind thick hull welds. This tool allows your crew to maintain 100% productivity through the toughest shifts."

— VIC CHEN, GENERAL MANAGER

Industrial Features & Engineering Logic

ALLOY ADVANTAGE

Mg-Al Lightweight Housing

The core of the LE-AG849A is its advanced Magnesium-Aluminum alloy body. This material is **1.5x more durable** than standard cast aluminum and significantly lighter than steel, offering superior impact resistance and natural heat dissipation for continuous high-load operation.

LE-AG849A Magnesium-Aluminum Body Detail
TORQUE TRANSMISSION

Precision Bevel Gear Drive

Equipped with specially treated precision-machined bevel gears, the LE-AG849A delivers smooth, vibration-isolated power. This reduces the risk of vibration-induced injury (HAVS) and ensures that 100% of the pneumatic power is translated into aggressive material removal.

HEAVY CORE

Heat-Treated Cylinder with Precision Surface Grinding for maximum rotational stability and zero performance drop-off.

Technical Procurement Summary

Model IdentifierLE-AG849A Series
Disc Size Capacity4" (100mm) or 5" (125mm)
Housing MaterialMagnesium-Aluminum Alloy
Free Speed11,000 RPM
Power GradeSuper-Duty / Industrial
Air Inlet Thread1/4" NPT / PT
Avg Air Consumption6.0 - 8.0 CFM
ManufacturingTaiwan Engineered & QC
Vic Chen - General Manager of LEMATEC

Strategic Industrial Inquiry

I am Vic Chen, General Manager at LEMATEC. We specialize in empowering global tool brands with high-performance industrial solutions that differentiate portfolios. If you are seeking a reliable shipbuilding tool partner for the LE-AG849A, I am ready to discuss your specific bulk requirements.

Request Bulk Pricing & Samples ➔

© 2026 LEMATEC. All Rights Reserved. Heavy-Duty Air Tool Innovation from Taiwan to the World.


Model Selection Guide
FeatureLE-AG849ALE-AG849BLE-AG849CLE-AG849D
Trigger TypeLeverRotaryLeverRotary
Spindle SizeM8 * 1.25M8 * 1.25M10 * 1.5M10 * 1.5
Weight2.12 kg1.82 kg2.12 kg1.82 kg
Length260 mm220 mm260 mm220 mm
Product Views
General Performance Specifications
Disc Size 4 Inch
Free Speed 13,500 RPM
Horse Power 1.1 HP
Flange Central Hole 16 mm
Air Consumption 5.6 CFM (@90PSI)
Avg. Air Consumption 10 SCFM
Air Inlet 3/8" NPT
Sound Level 108.16 dBA
Vibration 5.35 m/s²