作者： cdocast_admin

Selecting the correct press tonnage is critical for quality and efficiency. We recommend the optimal model based on a thorough analysis of three key factors: the raw material of your product, the final product dimensions, and the intricacy of the design/pattern to be stamped. This ensures you get a press that delivers flawless results without under or over-investing.

Generally, we do not recommend combining these functions into a single machine. The primary reasons are:

*Different Dies & Process: Each process requires dedicated dies, and frequent die changes in production are impractical and inefficient.

*Different Technical Requirements:

The Hydraulic Punching Machine requires an extreme, instantaneous impact force with a very short stroke. It operates like a paper hole puncher, demanding “speed, precision, and power,” with high requirements for machine rigidity and the hydraulic system’s burst pressure.

The Hydraulic Stamping Machine requires stable, continuous, and uniform pressure, often with a pressure-holding function. It works like a precision printing press, needing even pressure across the entire mold to ensure sharp, consistent, and deep-struck details. It demands extremely high precision and stability in pressure control.

The servo motor drive offers significant advantages:

*Energy Efficiency & Noise: Servo-driven presses are remarkably quieter and more energy-efficient, creating a better working environment and reducing operating costs.

*Precision Control: The servo motor allows for infinite and highly precise pressure adjustments, whereas standard motors have limited control. For products like 1g-200g gold bars, where exquisite detail is critical, we strongly recommend a servo-driven press for its superior pressure precision.

Both have their merits for specific applications:

*Four-Column Press: Offers superior structural stability and excellent pressure distribution, making it ideal for high-precision tasks. It typically comes at a higher price point.

*Frame Press (C-Type): A robust and cost-effective solution for many applications.

We will recommend the most suitable structure based on your specific product and technical process requirements.

We do not recommend using a single press for such a wide weight range. Here’s why:

*Initial Pressure: Every press has a minimum initial pressure (e.g., 50 Ton for a 300T press). A 1g bar may only require 10 Ton, meaning the machine’s minimum is still excessive, leading to premature mold wear and damage over time.

*Energy Efficiency: Using a large-capacity press for small products is highly inefficient. The energy consumption (electricity/hydraulic oil) is significantly higher than using a appropriately sized machine, leading to substantial long-term operational waste.

The bolster plates are a critical protective feature. During long-term operation, the press’s bed and slide can develop minor deformations. These installed bolster plates absorb this wear, protecting the main machine’s critical surfaces from damage and ensuring long-term accuracy.

A: The sub-Die holder is essential for safety, efficiency, and quality:

*Pressure Distribution: It helps distribute pressure evenly, which is crucial when using small molds for lightweight bars on a larger press.

*Integrated Ejection System: Our bolster plates and sub-mold holders are designed together with an **automatic ejection system**, making production safer and more efficient.

*Safety & Durability: In case of operator error causing excessive pressure and mold breakage, the sub-mold holder contains the fractured pieces, preventing injury and equipment damage. This also reduces downtime. Furthermore, it supports the mold structure, enhancing rigidity and prolonging the overall mold life.

A water chiller is only necessary if your operation involves continuous, uninterrupted work cycles exceeding 10 hours. For standard shift operations, the built-in cooling system is sufficient.

This is generally not feasible. The installation height and stroke of the ejection system must be precisely matched to your press’s shut-off height. A mismatch will prevent the automatic ejection from functioning and could lead to severe equipment damage or safety hazards.

Light curtains are a vital operator safety feature. They create an invisible infrared barrier around the pressing area. If a worker’s hand breaks this light beam during operation, the press will immediately stop, preventing potential accidents and ensuring a safe working environment.

The stamping capacity depends primarily on the surface area (cross-section) and the thickness of the metal bar. In standard production, this model is fully capable of hallmarking casting bars up to 12.5kg (400 oz standard gold delivery bars) and smaller

Yes, the machine supports precision pressure adjustment.

(1) Easy Operation: A pressure control valve is located on the front of the machine, allowing you to flexibly adjust the force based on the bar size and the required depth of the stamp.

(2) Real-time Monitoring: A pressure gauge on the right side allows operators to monitor the exact tonnage during the process, ensuring consistent stamping quality across every batch.

Yes, we offer complete custom tooling solutions.

(1) Precision Alignment: We customize branding dies (stamping dies) based on your specific casting bar dimensions.

(2) Integrated Die Sets: Our dies feature an integrated frame design with built-in positioning. Operators simply place the bar into the fixture for perfect alignment, and the bar can be removed smoothly after pressing, significantly increasing production efficiency.

We do not recommend this specific model for high-relief "minted" products (Minting Bars & Coins) for the following reasons:

(1) Pressure Precision: Minting requires extreme precision for intricate relief; this stamping machine is optimized for hallmarking and logo identification.

(2）Action Logic: Minting requires a "Fast Down — Slow Pressing — Slow Return" cycle to ensure full metal flow into fine details.

（3）Speed vs. Aesthetics: This machine is designed with a "Fast Up/Fast Down" logic to maximize stamping speed. While excellent for logos, it may not meet the aesthetic requirements of proof-like minted coins.
For high-quality coin production, please inquire about our Hydraulic Minting Press series

This machine is specifically engineered for precious metals, including Gold, Silver, Platinum, and Palladium bars of varying hardness.

Absolutely. By using interchangeable die inserts, you can simultaneously stamp your brand logo, weight (e.g., 1kg), purity (e.g., 999.9), and unique serial numbers

Our machine features a "Quick-Change Tooling" design. No complex tools are required; a single operator can complete a die change in under 30 seconds, making it ideal for small-batch production of various bar sizes.

The dies are made from high-hardness alloy steel and undergo specialized heat treatment. Under normal operating conditions, a single set of dies can perform tens of thousands of stampings while maintaining sharp edges.

The hydraulic system is optimised to operate at under 75 decibels24. Its compact footprint, 110 *85 *135 cm, makes it perfect for small-to-medium factories or urban jewelry workshops。

We have implemented a four-tier safety protection system to ensure operator security:

（1）Light Curtains: High-sensitivity infrared sensors stop the machine instantly if a foreign object enters the stamping zone.

（2）Dual Start Logic: In semi-automatic mode, the operator must press two buttons simultaneously with both hands to prevent injury.

（3）Flexible Controls: Choose between manual or semi-automatic modes, with the option for dual-button or foot-pedal control.

（4）Emergency Stop: A prominent red E-Stop button provides millisecond-level power cutoff in emergencies

The machine uses an energy-efficient 4KW motor, which saves approximately 20% more energy compared to traditional hydraulic presses. We offer custom configurations for both single-phase and three-phase power.

(1) Warranty: CDOCAST provides a 2-year quality guarantee, including free replacement of non-wear parts.

(2) Setup: No complex installation is required. The machine is fully calibrated before shipping; you only need to connect the power and add anti-wear hydraulic oil to begin. We provide detailed operation videos and manuals.

No complex installation is required. The machine is fully commissioned and tested before leaving the factory; you only need to connect the power supply and add anti-wear hydraulic oil to begin operations. We provide comprehensive instructional videos and operation manuals to guide you.

The four-column design is the preferred choice for stamping gold and silver bars due to its superior stability, ensuring the die maintains a perfectly vertical press without deviation. To maintain high-precision performance over time, we recommend the following maintenance routine:

（1）Guide Pillar Lubrication: Regularly apply lubricant to the four chrome-plated guide pillars to minimise friction and prevent corrosion.

(2) Hydraulic Oil Management: Periodically check the hydraulic oil levels and ensure the fluid remains clean according to the operation manual.

(3) Safety System Inspection: Regularly test the sensitivity of the light curtain guards and the emergency stop button to ensure the four-tier safety protection system is functioning at its best.