Spindle Drive Units
Pneumatic Drilling Unit BE 22SK with 250 Watt Power
The pneumatic drilling unit BE 22SK stands out due to its small, extremely robust, and compact design. Driven by a powerful pneumatic air motor, the system features a sturdy gearbox and a precise drive spindle with a 3/8" x 24 UNF thread.
In its standard version, the drilling unit is equipped with a keyed chuck as the tool holder. For flexible applications, the unit can optionally be fitted with a collet chuck. This versatile system is available in 7 different speed versions. As a customized special design, the drives can also be supplied for counter-clockwise rotation (left-hand rotation) as well as in a completely oil-free version.
- Compact Housing: Extremely stable and space-saving design for industrial use.
- 7 Speed Variants: Flexibly adaptable to different materials and drilling diameters.
- Side Air Outlet: Optimized airflow directly on the housing for safe operation.
- Flexible Tool Holder: Available with either a robust keyed chuck or a precise collet chuck.
- Special Designs: Optional delivery as a counter-clockwise version or in a completely oil-free version.
Guidlines for choice of unit
| Type | Ø in Steel | Ø in Aluminium & Brass | Ø in Wood / Plastics |
| mm | mm | mm | |
| No. of spindles | 1 / 2 / 3 / 4 | 1 / 2 / 3 / 4 | 1 / 2 / 3 / 4 |
| low speed | |||
| BE225SK | 8 / 6 / 5 / 4 | 12 / 9 / 8 / 7 | 22 / 11 / 9 / 8 |
| BE228SK | 8 / 5 / 5 / 4 | 12 / 9 / 8 / 7 | 20 / 11 / 9 / 7 |
| BE2211SK | 6 / 4 / 4 / 4 | 10 / 8 / 7 / 6 | 16 / 11 / 9 / 7 |
| high speed | |||
| BE2222SK | 6 / 3 / 3 / 3 | 9 / 7 / 6 / 5 | 14 / 9 / 8 / 6 |
| BE2236SK | 5 / 2.5 / 2.5 / 2 | 8 / 6 / 6 / 5 | 12 / 8 / 7 / 5 |
| BE2249SK | 4 / 1.5 / 1.5 / 1.5 | 6 / 5 / 5 / 4 | 10 / 6 / 6 / 4 |
| BE22220SK | 2 | 3 | 4 |
Performance specifications at 6.3 bar
| Power | 0.25 kW | Run-out at spindle nose (max.) | 0,03 mm | Air consumption | <0,3 cm³/min. |
| Min. center to center spacing | Working pressure range | 6 - 7 bar | Noise level | 70 dB(A) | |
| single spindle | 45 mm | ||||
| double spindle | 11 mm |
Technical drawing BE22SK - Dimensions in mm
Technical Data
| Type | Speed | Speed (at max. Power) | Torque (at max. Power) |
| low speed | rpm. | rpm. | Nm |
| BE225SK | 500 | 250 | 9.9 |
| BE228SK | 800 | 400 | 6.0 |
| BE2211SK | 1,100 | 550 | 4.3 |
| high speed | |||
| BE2222SK | 2,200 | 1,100 | 2.4 |
| BE2236SK | 3,600 | 1,800 | 1.5 |
| BE2249SK | 4,900 | 2,450 | 1.1 |
| BE22220SK | 22,000 | 11,000 | 0.25 |
Drilling units
| Drilling unit | A | Weight |
| low speed | mm | kg |
| BE225SK | 141 | 1.5 |
| BE228SK | 141 | 1.5 |
| BE2211SK | 141 | 1.5 |
| high speed | ||
| BE2222SK | 109 | 0.9 |
| BE2236SK | 109 | 0.9 |
| BE2249SK | 109 | 0.9 |
| BE22220SK | 109 | 0.9 |
Necessary components and accessories
For inquiries or orders, always specify: model, chuck (collet size) and whether a lubricant-free operation and / or counter-clockwise rotation is required.
All information subject to change without further notice.
No responsibility is taken for the correctness of the named specifications.
Product data sheet
Contact Person
Sale
Mediation via secretary:
Marita Förster
Phone +49-231/91 72 11 - 11
E-Mail: marita.foerster@bahco.de
Service / Order Processing:
Ursula Fietze
Phone +49-231/91 72 11 - 18
E-Mail: ursula.fietze@bahco.de