Hilti HST2-R V3 / HST2-HCR V3 Installation Guide and Technical Data

Product Overview

This document provides installation instructions and technical specifications for the Hilti HST2-R V3 and HST2-HCR V3 anchor bolts. It covers drilling, cleaning, installation, and tightening procedures, along with load data and accessory compatibility.

1. Dimensions and Formulas

The following dimensions are critical for proper installation:

L: Length of the anchor bolt.
d_f: Flange diameter of the anchor bolt.
h_nom: Nominal embedment depth.
h_Δ: Additional embedment depth required for certain applications or drill bit types.
h₁: Total required drilling depth, calculated as h₁ = h_Δ + h_nom.
h_min: Minimum embedment depth required for the anchor's performance.
s_min: Minimum spacing between anchors.
c_min: Minimum edge distance.

Visual representation: A diagram shows an anchor bolt with dimensions L, d_f, h_nom, and h_Δ. An inset shows the anchor in a base material with dimensions h_min, s_min, and c_min, along with warning symbols [!] indicating safety precautions.

Drill Bit Depths (h_Δ):

Visual representation: Three drill bits are shown with corresponding required additional embedment depths (h_Δ):

Drill bit for 5mm h_Δ.
Drill bit for 20mm h_Δ.
Drill bit for 10mm h_Δ.

2. Drilling and Cleaning

2a. Drilling Procedure

Drill a hole with a diameter (d₀) of 10mm to the required depth (h₁). The drill should be operated at 90° to the surface. Ensure the drilling direction is straight.

Visual representation: A diagram shows a drill bit entering a concrete surface at a 90° angle, with arrows indicating rotation and forward thrust. Text indicates d₀ = 10mm and h₁. Another diagram shows the anchor being inserted, with the condition h_min - h₁ ≥ 27 mm.

2b. Drilling Procedure (Alternative/Additional)

Drill a hole with a diameter (d₀) of 10mm to the required depth (h₁). The drill should be operated at 90° to the surface. Ensure the drilling direction is straight. Perform approximately 3x cleaning cycles.

Visual representation: Similar to 2a, showing drilling at 90° with d₀ = 10mm and h₁. Arrows indicate rotation and thrust. A "3x" symbol is shown, suggesting repeated action. Another diagram shows the anchor insertion with the condition h_min - h₁ ≥ 27 mm.

2c. Hole Cleaning

Thoroughly clean the drilled hole using a cleaning brush and compressed air (6 bar / 90 psi). This is crucial for optimal anchor performance.

Visual representation: A diagram shows a cleaning brush being inserted into the hole, followed by compressed air being blown into the hole. The condition h_min - h₁ ≥ 27 mm is shown again.

3. Anchor Installation

3a. Inserting the Anchor

Insert the anchor bolt into the cleaned hole. Use a hammer to gently tap the anchor until the flange is flush with the base material surface.

Visual representation: A diagram shows an anchor bolt being inserted into a hole, with a hammer being used to tap the anchor head.

3b. Setting the Anchor (HS-SC)

For anchors equipped with Hammer Setting Control (HS-SC), the anchor is set by striking the head with a hammer until the setting mechanism is activated.

Visual representation: A diagram shows the HS-SC anchor being struck with a hammer, indicating the setting process.

4. Tightening

Tighten the nut on the anchor bolt using an appropriate wrench. Ensure the anchor is securely fastened.

Visual representation: A diagram shows a wrench being used to tighten the nut on the anchor bolt.

5. Torque and Accessories

5a. Installation Torque

The recommended installation torque (T_inst) for these anchors is 45 Nm. The embedment depth is 17mm.

Visual representation: A torque wrench is shown indicating 45 Nm, and the embedment depth is marked as 17mm.

5b. Compatible Accessories

The following accessories are compatible with the HST2-R V3 / HST2-HCR V3 anchors:

SIW 4AT-22
SI-AT-22
SIW 6AT-22 (AT Module)
SI-S 1/2"-17 L

Visual representation: Images of the listed accessories are shown.

Technical Data Table

The following table provides fixing times (t_fix,min, t_fix,max) and nominal embedment depths (h_nom) for various anchor lengths (L) and anchor sizes. The table is structured by anchor length and displays minimum and maximum fixing times for different anchor configurations.

Anchor Size / Fixing Time	L (mm)						h_nom (mm)
Anchor Size / Fixing Time	70	90	100	110	130	150	h_nom (mm)
5mm (t_fix,min)	5	25	35	45	65	85	49
5mm (t_fix,max)	20	30	40	60	80	54
15mm (t_fix,min)	15	25	35	55	75	59
15mm (t_fix,max)	10	20	30	50	70	64
20mm (t_fix,min)	5	15	25	45	65	69
20mm (t_fix,max)	10	20	40	60	74
10mm (t_fix,min)	5	15	35	55	79
10mm (t_fix,max)	10	30	50	84
(Additional size?) (t_fix,min)	5	25	45	89

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