Trademark Model Diameter Outer Pipe mm. No Off Kelly Bar Sections (Qnty.) Nominal Drilling Depth  m. Nominal Torque Value kNm Transport Lenght m. Weight kg Spring Type
BRG-K24-394-3-24 K24 394 3 24 260 12 4800 Damping Spring
BRG-K24-394-3-30 K24 394 3 30 260 14 5500 Damping Spring
BRG-K24-394-3-36 K24 394 3 36 260 16 6300 Damping Spring
BRG-K24-394-3-48 K24 394 3 48 260 17 7900 Disk Spring
                 
BRG-K24-394-4-28 K24 394 4 28 250 11 6050 Damping Spring
BRG-K24-394-4-32 K24 394 4 32 250 12 6600 Damping Spring
BRG-K24-394-4-40 K24 394 4 40 250 14 7750 Disk Spring
BRG-K24-394-4-48 K24 394 4 48 250 16 8900 Disk Spring
BRG-K24-394-4-56 K24 394 4 56 250 18 10050 Disk Spring
BRG-K24-394-4-64 K24 394 4 64 250 20 11200 Disk Spring
                 
BRG-K28-419-3-24 K28 419 3 24 300 12 5450 Damping Spring
BRG-K28-419-3-30 K28 419 3 30 300 14 6300 Damping Spring
BRG-K28-419-3-36 K28 419 3 36 300 16 7100 Damping Spring
BRG-K28-419-3-39 K28 419 3 39 300 17 7550 Damping Spring
                 
BRG-K28-419-4-32 K28 419 4 32 280 12 7700 Damping Spring
BRG-K28-419-4-40 K28 419 4 40 280 14 8900 Disk Spring
BRG-K28-419-4-48 K28 419 4 48 280 16 10200 Disk Spring
BRG-K28-419-4-52 K28 419 4 52 280 17 10800 Disk Spring
BRG-K28-419-4-64 K28 419 4 64 280 20 12650 Disk Spring
                 
BRG-K36-470-3-30 K36 470 3 30 420 14 8150 Damping Spring
BRG-K36-470-3-36 K36 470 3 36 420 16 9300 Damping Spring
BRG-K36-470-3-48 K36 470 3 48 420 20 11450 Disk Spring
                 
BRG-K36-470-4-36 K36 470 4 36 420 13 10250 Damping Spring
BRG-K36-470-4-40 K36 470 4 40 420 14 11000 Disk Spring
BRG-K36-470-4-48 K36 470 4 48 420 16 12600 Disk Spring
BRG-K36-470-4-56 K36 470 4 56 420 18 14100 Disk Spring
BRG-K36-470-4-64 K36 470 4 64 420 20 15700 Disk Spring