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Our Manufacturing Cells and the
work we do
We use a framework of manufacturing cells to enable us to focus key production skills where they are needed most for particular jobs. Each cell is an autonomous manufacturing unit capable of undertaking a range of related operations. By combining the skills of several cells, we can offer a comprehensive manufacturing resource producing high quality components and assemblies to specific delivery schedules.
We use a framework of manufacturing cells to enable us to focus key production skills where they are needed most for particular jobs. Each cell is an autonomous manufacturing unit capable of undertaking a range of related operations. By combining the skills of several cells, we can offer a comprehensive manufacturing resource producing high quality components and assemblies to specific delivery schedules.
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Denholms have been manufacturing pump shafts for over 30 years, supplying a number of blue chip companies including Clyde Union Pumps & Sulzer Pumps.
Shafts are made from a variety of materials including Monel K500, Inconel 625, FV520B, Hastelloy, 316 Stainless Steel, 304 Stainless Steel, 709M40T (EN19T) & 080M40 (EN8).
The cell can manufacture pump shafts up to 8″ dia (203mm) x 4000mm and has a handling capacity of 1.5 tonne.
CNC machining for a wide range of components
Comprising eight CNC turning machines, one vertical machining centre, four lapping machines and one centreless grinding machine.
We have:
- Lynx 220 CNC Lathe x 2
- Puma 8 CNC Lathe with bar feed
- Puma 280M CNC Lathe with Live tooling
- Puma 2600 LY CNC Lathe
- Puma 310 CNC Lathe with Live tooling
- Puma 10HG CNC Lathe
- Mazak V414 Vertical Machining Centre with 4th axis.
- Cincinnatti Centreless Grinder Max Dia 32mm x 600mm
CNC machining for large components
CNC Turning up to a maximum diameter 900mm x 3200 between centres and CNC milling with a maximum machining area 5000mm x 2000mm x 1500mm
We have:
- Sacem MSMG-125 CNC Horizontal Boring Mill with Heidenhain TNC 430. 6-axis CNC with full 360 degree B axis.
UT 5-400 D’ANDREA U-TRONIC and UT 5-630 D’ANDREA U-TRONIC facing heads. Bespoke and universal angled heads. - Mills CNC Puma 3100XLY. Turning capacity 300 x 2125 with Y-axis and Driven Tools
- Doosan Puma 700LM CNC Lathe. Turning capacity 900 x 3200 between centres with travelling steady and live tooling. Equipped with Fanuc 32iT control system with Manual Guide ‘i’.
- Doosan Puma 700LY CNC Lathe.
- Daewoo Puma 12L CNC Lathe. Turning capacity 350 x 1050.
- BSA Viper CNC Lathe. Turning capacity 300 x 3000 with travelling steady and live tooling
- DNM 750L Vertical Machining Centre
- Colchester Electronic Mastiff CNC Lathe. Turning capacity 500 x 1750
- Daewoo Puma 12L CNC Lathe. Turning capacity 350 x 1050
Conventional Machine Cell
We have:
- Kearns Richards SF125 Horizontal Borer
Maximum Capacity 2400 x 1650 - Union BFT90/30 Horizontal Borer
Maximum Capacity 1600 x 1250 - Webster & Bennett 48″ Vertical Borer Max Dia. 1600 x 800
- Webster & Bennett 72″ Vertical Borer
Maximum Turning Diameter 2100mm - Niles DLZ1000 Centre Lathe
Maximum capacity 1000mm diameter x 4000mm between centres with hydraulic copy profile attachment
Fabrication Cell offers general fabrication services including shearing (up to 6mm x 3meters), CNC bending (up to 3 meters x 150 tonne) and coded welding ASME IX in mild steel and stainless steel.
Refurbishment of worn journals on a stone crushing drum
Denholm Rees and O’Donnell has ten Daewoo CNC lathes machining up to 900mm diameter and 3200mm in length. Three of the machines have 3rd Axis powered tooling.
For the manufacture of shafts and spindles up to 3000mm long and 300mm diameter, we have a BSA Viper CNC lathe with a travelling steady and 3rd Axis powered tooling.
In total we have has fourteen CNC lathes.
CNC Grinding is carrie dout using an Omicron 3620 CNC Universal Grinding Machine. The specifications for this are given below:
General Specifications.
| Maximum distance between centres | 2030mm |
| Maximum grinding length | 2030mm |
| Height of centres over table | 180mm |
| Swing over table | 355mm |
Techinical Specifications:
WORKING CAPACITY | ||
| Max. distance between centers | mm | 2030 |
| Max. grinding length | mm | 2030 |
| Height of centers over table | mm | 180 |
| Swing over table | mm | 355 |
| Max. weight on centers | Kg | 300 |
| Max. weight at 150 mm. from spindle nose | Kg | 100 |
| TABLE – ’1′ AXIS | ||
| Max. automatic traverse | mm | 2180 |
| Speed | mt/1′ | 0-6 |
| Max. swivel on either side | Gradi | +6°-2° |
WORKHEAD | ||
| Rotation speed rpm 0 . 300 | ||
| Spindle hole diameter | mm | 31 |
| Internal center taper | Mt | 5 |
| Max. swivel | Deg | 90° |
TAILSTOCK | ||
| Spindle stroke | mm | 50 |
| Spindle diameter | mm | 50 |
| Internal center taper | Mt | 4 |
WHEELHEAD – ‘X’ AXIS | ||
| Wheel rotation speed | mtl/sec | 35 |
| Wheel dimensions, LH side | mm | 450 x 80 x 127 |
| Wheel dimensions, RH side | mm | 350 x 50 x 127 |
| Max. swivel | deg | 0 – 90° |
| Max. feed stroke | mm | 260 |
| Additional stroke by sliding on sub-slide base | mm | 20 |
MOTORS | ||
| Wheel head | Kw | 5.5 |
| Wheelhead feed | Nm | 3,2 |
| Table feed | Nm | 11 |
| Workhead | Nm | 6 |
| Hydraulic power pack | Kw | 0,75 |
| Coolant pump | Kw | 0,18 |
DIMENSIONS AND WEIGHTS | ||
| Length x Width | mm | 6200×2000 |
| Height | mm | 2050 |
We operate under strict Quality Management Systems, in accordance with and approved by AOQC Moody International to ISO 9001 (2000 revision). Staff within the fabrications department have also been trained to both BS 4870 and ASME IX. We have one of the UK’s largest Coordinate Measuring Machine (CMM) providing us with reassurance that everything that leaves our premises is perfect.
For further details and copies of certificates, click here
