Hilti HST3 DN and HST3-R DN M12 Anchor Installation
Document Reference: 2332896-02.2022
Product Overview
This document outlines the installation procedures for Hilti HST3 DN and HST3-R DN M12 anchors. It includes essential technical data and step-by-step instructions for proper application.
Technical Data Table
| Anchor Type | tfix, min | tfix, max | hnom, min | hnom, max | hmin | hnom |
|---|---|---|---|---|---|---|
| HST3 DN HST3-R DN M12 | ||||||
| M12x105 30/10 DN | 10 | 30 | 60 | 80 | 40+hnom | 80 |
| M12x115 40/20 DN | 20 | 40 | 60 | 80 | 40+hnom | 80 |
Diagram showing anchor dimensions: hnom, hmin, tfix, max, h1/h1,nc, and the relationship between them. Also illustrates different installation depths and their corresponding values.
Installation Steps
Step 1a: Drilling the Hole
Drill a hole with a diameter (do) of 12mm. The required embedment depth (h₁) is calculated as hnom + 8mm. Ensure the drill bit is perpendicular (90°) to the surface.
Illustration of drilling a hole with a 12mm drill bit at a 90-degree angle.
Step 1b: Cleaning the Hole
Clean the drilled hole thoroughly. This may involve using a cleaning brush and compressed air. The required embedment depth (h₁) is calculated as hnom + 10mm. Ensure the hole is free of dust and debris.
Visual representation of cleaning a drilled hole using compressed air, possibly with a brush. Shows the connection to a cleaning device and the air flow.
Step 1c: Drilling with Specific Hilti Tools
For specific applications, use Hilti TE-CD or TE-YD tools. Drill a hole with a diameter (do) of 12mm. The required embedment depth (h₁) is calculated as hnom + 8mm. Maintain a 90° angle.
Illustration showing drilling with Hilti TE-CD or TE-YD tools, emphasizing the 12mm drill diameter and 90° angle.
Step 1d: Alternative Drilling and Setting
Drill a hole with a diameter (do) of 12mm. The required embedment depth (h1,nc) is calculated as hnom + 20mm. Ensure the drill bit is perpendicular (90°). After drilling, perform the setting process three times (3x). Verify that hmin - h1,nc is greater than 32mm.
Depicts drilling with a 12mm bit and a specific embedment depth (h1,nc), followed by a setting action repeated three times. Includes a check for a minimum clearance.
Step 2a: Hammering the Anchor
Insert the anchor into the drilled hole. Use a hammer to gently tap the anchor into place, ensuring it is fully seated.
Shows inserting the anchor into the hole and using a hammer to drive it in.
Step 2b: Setting the Anchor (HS-SC)
Use the Hilti HS-SC tool to set the anchor. Follow the tool's specific operating instructions.
Illustration of the Hilti HS-SC tool being used to set the anchor.
Step 3: Final Setting and Inspection
Ensure the anchor is properly set. The setting process may involve applying a specific torque or using a setting tool. Check for proper seating and alignment. The anchor should be set at a pressure of 6 bar / 90 psi.
Shows the anchor fully set in the material, possibly with a gauge indicating pressure.
Step 4a: Torque Application
Apply a tightening torque (Tinst) of 60 Nm. Ensure the anchor is secured at the specified torque value.
Illustration of a torque wrench being used to tighten the anchor to 60 Nm.
Step 4b: Using Specific Hilti Accessories
Use Hilti SIW 6AT-A22+ or SI-AT-A22 accessories for installation. Ensure proper alignment and tightening.
Shows the use of specific Hilti tools (SIW 6AT-A22+, SI-AT-A22) for the installation process.
General Installation Note
When tightening the nut, apply a maximum torque of 0.5 Nm to the threaded rod to avoid damaging the anchor.
Illustration showing the tightening of a nut on the anchor with a torque wrench, indicating a maximum of 0.5 Nm.
