Is the pressure of a deep throat punch greater than that of a regular one?

The nominal pressure of deep throat punching machines is usually higher than that of ordinary punching machines, with a pressure range covering 400 kN to 1250 kN (some models can reach even higher), while the tonnage and pressure of ordinary punching machines are generally smaller, with some mechanical ordinary punching machines having a tonnage of less than 100 tons, and hydraulic ordinary punching machines having relatively limited pressure. The following analysis will be conducted from three aspects: pressure parameters, design differences, and application scenarios:

1. Nominal pressure: the 'hard power' of deep throat punching machines

The nominal pressure of deep throat punch press is one of its core advantages. Taking specific models as an example:
1. J21S-125A deep throat punch press: With a nominal pressure of 1250 kN (approximately 127 tons) and a throat depth of 900 mm, it is suitable for sheet metal punching, cutting, bending, and shallow deep drawing processes in industries such as stainless steel products, electrical appliances, and automobiles.
2. J21S-100T deep throat punch press: The throat depth can be customized to 1200 millimeters, with a nominal pressure coverage of 400 kN to 1000 kN (approximately 40 tons to 100 tons), meeting the processing needs of large-sized workpieces.
In contrast, the nominal pressure of ordinary press machines is generally lower:
1. Ordinary mechanical punch press: The tonnage is mostly below 100 tons, and some small models have a pressure of less than 50 tons, making it difficult to handle high-strength metals or large-sized workpieces.

2. Ordinary hydraulic punch: Although compact in structure and stable in performance, the nominal pressure usually does not exceed 600 kilonewtons (about 60 tons), and there is a risk of contamination in the transmission oil, resulting in a high maintenance rate.

2. Design difference: "structural advantage" of deep throat punch press

The throat depth of the deep throat punch press (the distance from the centerline of the slider to the body) is a key feature that distinguishes it from ordinary presses:
1. Throat depth range: 400 millimeters to 1200 millimeters, some models (such as J21S-100T) can be customized to 1200 millimeters, far exceeding the 200-300 millimeters of ordinary presses. This design enables the deep throat punch press to process large-sized workpieces such as boxes, cabinet doors, and cover plates, while ordinary presses are only suitable for small parts.

2. Body structure: The deep throat punch press adopts high-strength steel plate welded body and undergoes heat treatment to eliminate stress, with small deformation and low vibration, ensuring accuracy stability under long-term use. Ordinary press machines, due to structural limitations, are difficult to balance large-sized machining and high-precision requirements.

3. Application scenario: Exclusive field of deep throat punch press

The high pressure and large throat depth of deep throat punching machines make them irreplaceable in specific industries:
1. Production of stainless steel products: It is necessary to punch and feed large-sized stainless steel plates. Ordinary presses cannot complete the processing due to insufficient pressure or insufficient throat depth.
2. Automotive industry: Automotive panels, structural components, etc. require high-precision stamping. The CNC system and precision mechanical structure of deep throat punching machines can achieve one-time molding, while ordinary presses require multiple adjustments, resulting in low efficiency.
3. Electrical and instrumentation industries: High precision is required for products, and the nominal pressure and stroke times (45-55 times/minute) of deep throat punching machines can ensure the quality stability of mass production.
Deep throat punching machines are superior to ordinary presses in terms of nominal pressure, throat depth, structural design, and application scenarios, especially suitable for large-sized, high-precision, and batch metal stamping processing. If high demand workpieces such as stainless steel products, automotive coverings, or electrical instruments need to be processed, deep throat punching machines are a better choice; Ordinary press machines are suitable for small parts, low precision, or single piece processing scenarios.