Kratos IN LOCK-1 Concrete Anchor - 12kN Breaking Strength

Kratos IN LOCK-1 Concrete Anchor

Most fall arrest anchor points on concrete structures require bolts, chemical resins, or pre-installed fixings. The IN LOCK-1 requires none of these. A 20mm diameter hole drilled to 110mm depth is all the preparation needed. The anchor is inserted into the hole and the pressure button is depressed: the wedging mechanism expands inside the concrete and locks the anchor in place. The yellow textile loop provides the attachment point for a karabiner or lanyard. At 150g, it is light enough to carry multiple units to the work position, and the 12kN breaking strength meets the EN795:2012 Type B requirement for portable anchoring devices used in fall arrest systems. When the task is complete, the anchor can be removed and the hole filled.

Why Choose the Kratos IN LOCK-1 Concrete Anchor

• No bolts, no resins, no specialist tools: The pressure button wedging mechanism sets the anchor in a standard 20mm drilled hole. A standard SDS drill and 20mm bit is all that is needed, equipment already present on most construction sites.

• Installs in seconds: The insertion and wedging process takes a matter of seconds once the hole is drilled. For temporary tasks on concrete structures where a permanent anchor is not justified, this eliminates the lead time of installed anchor systems.

• EN795:2012 Type B certified: Type B covers portable anchoring devices that do not require the fixing of additional structural anchors to the host structure. CE marking to this standard confirms the IN LOCK-1 is legally compliant for use as a fall arrest anchor point on UK sites under the Working at Height Regulations 2005.

• 12kN breaking strength: Meets the minimum static strength requirement for anchor points in a fall arrest system. The host concrete structure must also be confirmed as sufficiently resistant at the installation point before use.

• Aluminium, steel, and stainless steel construction: The combination of materials keeps the unit lightweight at 150g whilst providing the structural performance required by EN795:2012. Stainless steel components resist corrosion in outdoor and exposed concrete environments.

• Removable and reusable: Unlike chemical resin anchors or through-bolts, the IN LOCK-1 can be removed after use. The drilled hole can be filled, leaving minimal trace on the structure. This makes it the correct choice for projects where the client does not permit permanent fixings.

• Yellow textile loop for instant visual confirmation: The high-visibility yellow loop is visible from a distance, confirming the anchor is in place before the operative connects their fall arrest system.

What's Included

• Kratos IN LOCK-1 Concrete Anchor x 1

 Specifications

Compatibility

Who Is This For?

This anchor is for site managers, safety officers, and operatives who need a temporary certified anchor point on a concrete structure where permanent fixings are not appropriate or not permitted. It is suited to maintenance contractors, roofing teams, and construction operatives working on concrete flat roofs, concrete walls, concrete columns, and elevated concrete platforms where a fast, removable anchor solution is required. The competent person responsible for the rescue plan must confirm the structural adequacy of the host concrete at the installation point before use.

Typical Applications

• Temporary anchor point on concrete flat roofs for maintenance and inspection operatives

• Anchor point for horizontal temporary lifeline end connections on concrete structures

• Temporary anchor on concrete columns and walls for work at height tasks of limited duration

• Anchor point for operatives accessing concrete structures via fixed ladders or fixed routes

• Work station prevention anchor on concrete elevated platforms

• Suspension and double rope descent applications from concrete structures where the host resistance has been confirmed

How to Use

1. Identify the installation position. Confirm the anchor will be as high above the work position as practicable to achieve fall factor 0 or fall factor 1. Avoid positions that create a fall factor 2 or a significant pendulum effect.

2. Confirm the concrete structure at the installation point is sufficiently resistant. The static strength of the host structure must be greater than 12kN at the anchor position. If structural resistance cannot be confirmed, do not install.

3. Drill a clean hole of 20mm diameter and 110mm depth at the selected position using a standard SDS drill. Remove dust and debris from the hole.

4. Insert the IN LOCK-1 into the hole. Press the pressure button to activate the wedging mechanism. The anchor will expand and lock into the concrete.

5. Confirm the anchor is locked and seated flush to the concrete surface. Pull test by hand before connecting any fall arrest equipment.

6. Connect a karabiner to the yellow textile loop and attach the fall arrest lanyard or guided arrester as specified in the method statement.

7. On completion, release the wedging mechanism to remove the anchor. Fill the drilled hole as required by the site or client specification.

Safety

• The host concrete structure must have a static strength greater than 12kN at the installation point. Do not install in cracked, spalled, carbonated, or otherwise compromised concrete without a structural assessment.

• Always aim for fall factor 0 or fall factor 1. Position the anchor as high above the operative's harness attachment point as practicable. Fall factor 2, where the anchor is below the harness attachment point, generates the highest arrest forces and must be avoided where possible.

• The pendulum effect must be minimised. Position the anchor directly above the work area to reduce the arc of swing in a fall event.

• This product is classified as No PPE. It is an anchor device. The fall arrest system connected to it, the harness and lanyard, must be separately certified PPE.

• A rescue plan must be in place before any work begins, as required under EN365.

Maintenance

• Inspect the anchor before and after every use. Check the textile loop for cuts, abrasion, and contamination. Check the wedging mechanism for deformation or damage. Check all metal components for corrosion.

• Clean with a damp cloth after use. Remove concrete dust, debris, and moisture before storage.

• Store in a dry environment away from corrosive chemicals.

• Formally inspect by a competent person at intervals not exceeding 12 months with written records per PUWER.

• Withdraw from service immediately after any fall arrest event. The anchor must be assessed by a competent person before any decision on return to service.

Frequently Asked Questions

Q: What is EN795:2012 Type B and why does it matter for this anchor?

A: EN795:2012 is the European standard for anchor devices used in personal fall protection systems. Type B covers portable anchoring devices that do not require the fixing of additional structural anchors to the host structure. The IN LOCK-1 inserts into a drilled hole and wedges in place using its own mechanism without requiring bolts, resins, or installed fixings. CE marking to EN795:2012 Type B confirms it meets the legal requirements for use as a fall arrest anchor on UK sites under the Working at Height Regulations 2005.

Q: What concrete strength does the structure need to have for this anchor to be used?

A: The static strength of the host structure at the installation point must exceed 12kN, which is the minimum requirement for anchor points in a fall arrest system under EN795. A standard modern concrete structure will typically meet this requirement, but damaged, carbonated, cracked, or thin concrete sections must be assessed by a competent person before installation. The anchor is only as strong as the concrete it sits in.

Q: What is the fall factor and why does anchor height matter?

 A: The fall factor is the ratio of the distance fallen to the length of the lanyard. Fall factor 0 means the anchor is above the operative: the preferred position, generating the lowest arrest forces. Fall factor 1 means the anchor is at the same level as the harness attachment point. Fall factor 2 means the anchor is below the attachment point: the worst case, generating the highest forces. The IN LOCK-1 should always be installed as high above the work position as the structure allows to achieve fall factor 0 or fall factor 1.

Q: What is the pendulum effect and how does anchor position affect it?

 A: The pendulum effect occurs when an operative falls in a direction away from the direct line beneath the anchor point. They swing in an arc and can strike a structure, edge, or obstacle during the arrest. The further the operative moves laterally from the anchor point, the greater the pendulum arc and the higher the risk of impact. Install the IN LOCK-1 as directly above the work position as possible to minimise pendulum risk.

Q: Can this anchor be used more than once?

A: Yes. The IN LOCK-1 can be removed after use and reinstalled in a new hole. Before reuse, inspect all components for damage, deformation, or corrosion. If the anchor has been involved in a fall arrest event, it must be withdrawn from service immediately and assessed by a competent person before any decision on reuse.

Q: Can this anchor be used in materials other than concrete?

A: No. The IN LOCK-1 is designed and certified specifically for installation in concrete. The wedging mechanism relies on the specific resistance characteristics of concrete. Do not install in masonry, timber, plasterboard, or any other material. For non-concrete surfaces, a different anchor product must be specified.

Q: This product is classified as No PPE. What does that mean?

 A: No PPE means this anchor is classified as an anchor device rather than personal protective equipment under EU Regulation 2016/425. It provides the anchor point to which PPE is connected, but it is not itself PPE. The harness and lanyard worn by the operative are PPE and must be separately certified to their relevant EN standards.

Q: Where can I order this and how quickly can I get it to site?

A: CMT Group supplies the IN LOCK-1 from stock with next working day delivery on orders placed by 7pm online or 5pm by phone. Same-day delivery is available: call the team to confirm stock and arrange despatch. For contractors managing fall protection hardware across multiple concrete structure projects, the EDGE portal provides agreed contract pricing and full delivery visibility in one place.