1.ISO International BKB: Initial cartridge pressure range — BKB 450 N to 100 kN

2. Compact structure: Initial spring pressure range--— BKJ1700N–75KN

3. Ultra-short and powerful type: Initial projectile pressure range — BKC1700N to 200KN

4. Tall and robust design: Initial elastic pressure range--BKH5000N to 183KN

5. The new high-pressure nitrogen spring is interchangeable with Misumi and Italy's Bodding: --BKN/BKQ6-80KN

Note: The aforementioned five major series represent internationally recognized standards, particularly in the automotive mold industry, and essentially meet the requirements for various mold types. The ISO-standard model fully complies with the ISO 11901 international standard for nitrogen springs, ensuring complete interchangeability with foreign counterparts such as Sweden's KALLER, DADCO, HYSON, and QUIRI.

1. BKB Series:
This is the national standard model and also the world's first nitrogen spring series model, with all dimensions compliant with the ISO 11901 nitrogen spring standard.
Spring pressure: 45 KGF to 1000 KGF
Range: 10mm-300mm
Maximum number of strokes per minute: approximately 15–40 (at 20°C)

2. BKJ Series:
This series is slightly shorter than the BKB, but its pressure level matches that of the BKB.
Spring pressure:170 KGF to 7500 KGF
Range: 10 mm – 125 mm
Maximum number of strokes per minute is approximately 30(at 20 ℃).

3. BKC Series:
This is the world's shortest nitrogen spring with the highest elastic pressure for plunger sealing, featuring bottom-mounted and side-mounted configurations.A full-face air inlet, which can be connected via a piping system.
Spring pressure:250 KGF – 20,000 KGF
Range: 10 mm – 125 mm
Maximum number of strokes per minute: approximately 20-80(at 20 ℃)

4. BKH Series:
This series of nitrogen springs features a smaller cylinder outer diameter, enabling them to deliver higher elastic pressure.
Spring pressure:470 KGF to 18300 KGF
Range:6 mm-50 mm
Maximum number of strokes per minute is approximately 50(at 20 ℃).

5. BKN High-Voltage, Powerful New Product Series:
Spring pressure:300 KGF-2000 KGF
Range: 10 mm-100 mm
Maximum stroke count per minute is approximately 6-50(at 20 ℃)

6. BKP High-Pressure, High-Performance New Product Series:
Spring pressure:150 KGF-300 KGF
Range: 10 mm-80 mm
Maximum stroke count per minute is approximately 6-50(at 20 °C)

7. BKQ High-Voltage, Powerful New Product Series:
Spring pressure:600 KGF-8000 KGF
Range: 10 mm – 80 mm
Maximum number of strokes per minute is approximately 6-50(at 20 ℃)

Label：BKB Series,BKJ Series,BKC Series,BKH Series,BKN Series,BKP Series,BKQ Series