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Quick hitch

Advantages of Q-Safe™
• Designed for tiltrotator digging – the digging forces are distributed through the body of the hitch, not the hitch ram
• The EC-Oil automatic quick hitch system connects the tiltrotator & hydraulic tools without the operator needing to leave the cab.
• Hydraulic locking with fourfold safety:
1. Electronic surveillance detects when both attachment axles are correctly located
2. A non-return valve prevents the hydraulic cylinder from opening even if a hose ruptures or there is a pressure drop
3. Powerful, interior springs keep the hitch locked even if the electronics and hydraulics fail.
4. The unique design of the lock bolt provides additional safety as the bucket axle bottoms against the hitch side plates and cannot therefore drop out of position even if all three of the above steps should fail.
• The bucket can only be removed when it is under positive ground pressure (in conjunction with QSC). This eliminates the risk of dropped buckets.
• Front and rear detectors eliminate the risk of accidents caused by swinging tools
• Q-Safe is supplied as standard with external audible and visible warning signals to alert the surrounding area
• Play-free design with double contact surfaces compared to many other hitch systems
• Longer hooks (shark jaws) to make picking up tools safer and easier
• Welded high-strength steel
• Fits all excavators in the specified weight class independent of control system
• The hook is classified for safety in compliance with: EN ISO 12100-1/A1:2009 and EN ISO 12100-2/A1:2009
• Q-Safe is also fitted as standard equipment under Engcon tiltrotators with hitch sizes S45-S80.

  • Axle diameter A: ø70 mm
  • Width B: 450 mm
  • Length C: 600 mm
  • Construction height D: 190 mm
  • Weight: 290* kg
  • Recommended hydraulic pressure open/closed: 21–25 MPa
  • Max hydraulic pressure: 35 MPa
  • Base machine weight: 16-30 t

System engcon

What is most important for you?

  • Profitability

    System engcon, centred around the tiltrotator, saves both time and fuel.

  • Safety

    Fewer machine transits and less need for manual work increases safety at the workplace.

  • Flexibility

    The tiltrotator's ability to tilt and rotate makes the machine a good all-rounder that carries out most tasks with greater precision.

  • Efficiency

    Fewer machine movements and faster jobs mean less wear on the machine.

Read more about Concept engcon


Why is the Q-Safe one of the world’s safest quick hitch locks?

Q-Safe cannot be opened with the tool off the ground. The bucket must be in contact with the ground in order to disconnect* it. In other words, it's impossible to drop the bucket through unintentional opening of the quick coupler lock.

Furthermore, Q-Safe enjoys threefold safety through:

  1. Monitoring functions with audio and visual alerts to warn the operator if the bucket is not correctly connected.
  2. Powerful springs and hose burst valves in the locking cylinders maintain the lock function in the event of a ruptured hose. This unique design feature makes it impossible for the bucket to dislodge, even if the locking cylinder or other hydraulics should fail.
  3. Preventing full excavator use, unless the bucket or tool is properly connected, by activating slew limitation* or boom lift limitation*.

* Accessories

What should I consider when deciding my excavator specification?

Despite the increasing popularity of tiltrotators, many excavator manufacturers do not yet sell 'tiltrotator-ready' machines on certain markets. There are two main considerations when buying a new excavator for use with a tiltrotator - dipper length and hydraulics. Ideally, a shorter dipper should be chosen to take into account the build height of the tiltrotator. For example, if the standard dipper length is 2500mm, choose one 2000mm long so that the extra reach resulting from the addition of the tiltrotator still falls within the manufacturer's safe working range and that there is no chance of the bucket or other attachment hitting the cab when fully crowded.

The standard machine hydraulics can often be used for tiltrotator operation, but the machine controls may not be sufficiently sophisticated to fully exploit the capabilities of the attachment. Tiltrotators are usually supplied with so-called fully proportional control systems. These allow the hydraulic power to be gradually increased according to the needs of the attachment and the task to be completed, for example when pouring type 1 or concrete into a narrow area or using grabs or pallet forks. Non-proportional, or on/off systems which are generally button-operated do not allow the delicacy of control necessary for many tiltrotator operations.

If the excavator has two dual-acting proportionally controlled hydraulic circuits, then basic tiltrotator operation should be possible using the excavator's controls. A third, non-proportional circuit will be required for the tiltrotator hitch. Where a single, dual acting circuit is fitted, it is often more cost-effective to use engcon's DC2 control system which manages the hydraulic switching and flow proportionally within the tiltrotator, rather than have additional circuits fitted.

What makes Q-Safe different from other quick couplers?

The requirement for the bucket to have ground contact is a unique function. Furthermore, either the slew or boom lift function is blocked if the bucket is not correctly connected.

Q-Safe is factory-fitted for EC-Oil – engcon’s solution for connecting hydraulic tools automatically from the operator’s position.

The standard Q-Safe quick hitch is delivered with a warning system that alerts the operator if the bucket or tool is not in full contact with the quick hitch. For further safety, there is an optional ground pressure function. QSC – Q-Safe Control – is also available to enable safe control of the excavator's and tiltrotator's quick hitch through a single control panel.

What is Q-Safe?

Q-Safe is the umbrella term for engcon's safe quick hitch and associated products.

How do I safely control locking the bucket and/or tiltrotator? Regardless of the type of excavator I have?

You can do this using QSC – Q-Safe Control – which is a smart panel installed on the right in front of the operator in the cab where the lock buttons for the machine's quick coupler and the tiltrotator's quick coupler lock are brought together in a single control unit. This means the operator, regardless of the type of machine he is using, does not have to search for lock buttons. QSC is suitable for all excavators and every make and type of quick hitch. In other words, engcon has standardized the actual control of all quick hitches thus reducing to a minimum the risk of accidents due to incorrect operation.

Can Q-Safe be used on all excavators? Together with other products from other manufacturers (e.g. buckets, tiltrotators etc.)?


Can I use my existing buckets?

The pin geometry on your existing buckets is unlikely to be compatible with the S-type coupler fitted to standard tiltrotators. Choosing a Unisafe/PUP coupler to allow you to use your existing buckets is likely to be a false economy for the simple reason that tiltrotator (s-type) buckets are designed for tiltrotator digging. Not only is the angle of the bucket optimised for tiltrotator use, but the bucket geometry (shape, size, etc.) is specific for rotational and angled digging and grading. The saving you make by choosing the S-type coupler can be re-invested in top bracket adapters to convert your existing buckets and other attachments.

If you are running hydraulic tools, you can also purchase adapter brackets EC-Oil ready, or pre-fitted with EC-Oil and thus convert your current hydraulic tools with ease for the S-type coupler.

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