Specialist Engineering Product Range

Precision Engineering

Calder Group's specialist engineering subsidiaries occupy niche positions, and serve customers in the aerospace, oil & gas, nuclear power, healthcare and other mission critical markets.

Precision Machined Components

Helander Precision Engineering's largest market is the oil & gas exploration industry, particularly components for rotary steerable drilling equipment.  Helander also supplies customers in the aerospace, electronics and other sectors.  Helander operates top quality, state of the art machine tools enabling robotic loading and 24/7 lights out operation.  Quality accreditation includes ISO 9000:2000, NS1, AS9104, Rolls-Royce, BAe and Sabre.

Speed Shop Services

Midland Aerospace is a specialist "speed shop" manufacturer of aerospace spare parts and late specification components in small batch sizes and to extremely short lead times.  The business has a unique combination of a high skills base, a flexible "can-do" culture and a very wide range of CNC machine tools, fabrication facilities and in house support functions that enable it to manufacture complex components and assemblies to lead -times of one to five days without compromise to product specification and quality.  Midland's core capability is in the manufacture of small to medium-sized parts from aluminium, titanium and various grades of steel.  The CNC machining capability includes the latest 5-axis technology.

Bronze Alloy Bar and Machined Components

Leeds Bronze is the UK's leading specialist stockholder and distributer of bronze and copper-based alloys.  A wide range of standard specification products are held in stock, including PB1, PB2, SAE60, CUSN 12, CUSN 7, CA104, BS, B23 and NES 833.  These alloys are all certified and fully traceable.  A nationwide delivery service is available with a 48 hour guarantee.

Leeds Bronze specialises in the machining of precision bushes and bearings, a wide range of components for valves, pumps, sonar, and other marine equipment, and products for the specialist automotive component and heavy plant sector.  Batch sizes vary from high volume parts for blue chip OEMs to one off spares and bespoke components.  Leeds Bronze maintains a policy of on-going investment in plant and equipment to guarantee customer access to the latest machining technology.

Nuclear Engineering

Aquila Nuclear Engineering provides mission-critical engineering solutions to nuclear and healthcare companies worldwide. Aquila’s staff includes engineers from across Europe with proven expertise in the delivery of major projects for companies such as NMP, UKAEA, AWE, GE Healthcare, IBA, AKTIV, INPP and MAGNOX.   Aquila solves complex nuclear engineering challenges by combining world class engineers and project managers, state of the art technology and in-depth understanding of shielding materials and manufacturing.