3M 751120 Speedglas 100V Welding Helmet
3M Speedglas 100V Auto-Darkening Welding Helmet (751120) is an ideal protective welding mask for professional and novice welders, offering globally proven Speedglas technology at an affordable price. Thanks to its auto-darkening filter, it protects your eyes from intense light the moment it detects the welding arc, while providing a clear view before and after welding. Safely usable in almost all arc welding processes such as MIG/MAG, TIG, shielded metal arc (MMA), and plasma welding, the 100V protects your eyes at all times by transitioning from light to dark in just 0.1 milliseconds. Its lightweight structure and adjustable headband offer high comfort even during long working hours.
Key Features
- Auto-darkening filter (ADF): Automatically darkens when it detects the welding arc and lightens when the process is complete.
- 5-step darkening adjustment (DIN 8–12): Adjustable dark tone levels for different welding methods and currents.
- Light shade 3: Light state providing clear visibility during tasks such as welding preparation and grinding.
- 0.1 ms switching time: Extremely fast transition from light to dark at 23 °C for maximum eye protection.
- 3 sensitivity settings: Reliable arc detection based on ambient light and welding method.
- Delay function: Option to personalize the transition time from dark to light.
- Permanent UV/IR protection: Constant DIN 12 level UV and IR protection regardless of the filter's state.
- Optional hard hat adapter: Possibility of integrated use with head protection equipment.
Technical Specifications
| Product Code | 751120 |
| Brand | 3M Speedglas |
| Model | Speedglas 100 Series (Filter 100V) |
| Product Type | Auto-Darkening Welding Helmet |
| Color | Black |
| Dark Shade (Darkening) | DIN 8–12 (5 steps) |
| Light Shade | DIN 3 |
| Switching Time (Light→Dark) | 0.1 ms (23 °C) |
| Viewing Area | 44 x 93 mm |
| Sensitivity Adjustment | 3 steps |
| UV/IR Protection | Permanent DIN 12 |
| Delay Function | Yes (adjustable) |
| Power Source | Solar + battery powered |
| Compatible Welding Methods | MIG/MAG, TIG, MMA (shielded electrode), Plasma |
| Origin | Imported Product |
Darkening Shade (DIN) Selection Guide
The adjustable darkening level of the Speedglas 100V filter from DIN 8–12 should be selected according to the welding method and current intensity you are using:
- DIN 3 (Light shade): Welding preparation, grinding, and general visibility
- DIN 8–9: Low-current TIG and light welding tasks
- DIN 10–11: Medium-current MIG/MAG and MMA welding
- DIN 12: High-current heavy welding operations
The correct darkening shade protects your eye health and improves work quality by ensuring clear visibility of the weld seam.
Areas of Use
- MIG / MAG (gas metal arc) welding
- TIG (argon) welding
- Shielded metal arc (MMA / stick) welding
- Plasma welding
- Assembly, maintenance, and metalworking workshops
- Grinding and surface preparation operations
- Industrial facilities, shipbuilding, and general manufacturing
Why Nida Safety?
As Nida Safety, we reliably offer only original and certified personal protective equipment (PPE), including the 3M Speedglas 100V welding helmet. As an authorized supplier of world-renowned brands such as 3M, Uvex, Honeywell, Ansell, and Base Protection, we do not compromise on quality and reliability in work safety products. With fast shipping, in-stock delivery, and expert customer support, you can easily access the protective equipment you need.
