[et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” use_background_color_gradient=”on” background_color_gradient_stops=”rgba(0,0,0,0.24) 0%|rgba(0,0,0,0.45) 99%” background_color_gradient_overlays_image=”on” background_image=”https:\/\/sjnbcasting.com\/wp-content\/uploads\/2025\/08\/suijin-Vacuum-Casting-solution.jpg” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_heading title=”Vacuum Casting Process” _builder_version=”4.27.4″ _module_preset=”default” title_font=”|700|||||||” title_text_align=”center” title_text_color=”#FFFFFF” title_font_size=”60px” global_colors_info=”{}”][\/et_pb_heading][lwp_divi_breadcrumbs link_color=”#FFFFFF” separator_color=”#FFFFFF” current_text_color=”#FFFFFF” _builder_version=”4.27.4″ _module_preset=”default” module_text_align=”center” text_orientation=”center” global_colors_info=”{}”][\/lwp_divi_breadcrumbs][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ _builder_version=”4.27.4″ _module_preset=”default” max_width=”1440px” global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_heading title=”Vacuum Casting Introduction” _builder_version=”4.27.4″ _module_preset=”default” title_level=”h2″ title_font=”|700|||||||” title_text_color=”#900721″ title_font_size=”35px” global_colors_info=”{}”][\/et_pb_heading][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_font_size=”16px” header_2_font=”|700|||||||” global_colors_info=”{}”]<\/p>\n
Vacuum casting (VC) is a rapid prototyping and small-batch production technology that uses a vacuum environment to inject liquid polyurethane (PU) resin into a silicone mold, replicating the structure of a finished product identical to the prototype (such as a 3D printed part or a CNC machined part).<\/p>\n
This process combines prototyping accuracy with production flexibility, and is widely used in industrial design verification, functional testing, and small-batch product delivery. It is particularly suitable for the rapid deployment of tool kit components, precision hardware accessories, and electronic housings.<\/p>\n
[\/et_pb_text][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/sjnbcasting.com\/wp-content\/uploads\/2025\/11\/suijin-Vacuum-Casting-process.jpg” alt=”Vacuum Casting process” title_text=”suijin-Vacuum-Casting-process” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” background_enable_color=”off” use_background_color_gradient=”on” background_color_gradient_stops=”rgba(255,255,255,0.81) 0%|rgba(255,255,255,0.71) 100%” background_color_gradient_overlays_image=”on” background_image=”https:\/\/sjnbcasting.com\/wp-content\/uploads\/2025\/08\/suijin-Vacuum-Casting-solution.jpg” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_heading title=”Vacuum Casting Process” _builder_version=”4.27.4″ _module_preset=”default” title_level=”h2″ title_font=”|700|||||||” title_text_align=”center” title_text_color=”#900721″ title_font_size=”35px” global_colors_info=”{}”][\/et_pb_heading][et_pb_text _builder_version=”4.27.4″ _module_preset=”default” text_text_color=”#000000″ text_font_size=”16px” global_colors_info=”{}”]<\/p>\n
The core of vacuum casting is to achieve precise filling and bubble-free molding of liquid resin through a vacuum negative pressure environment. The process needs to take into account precision control, efficiency optimization and the small-batch delivery requirements of foreign trade orders.<\/p>\n
Suijin Machinery provides standard process flows for large-scale industrial production, while also offering optimized solutions for small-batch customization.<\/p>\n
[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”2″ _builder_version=”4.27.4″ _module_preset=”default” max_width=”1440px” box_shadow_style=”preset1″ global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Step 1: Precision Master Model Fabrication” use_icon=”on” font_icon=”||divi||400″ icon_color=”#900721″ icon_placement=”left” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h3″ header_font=”|700|||||||” header_font_size=”25px” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n
Core Objective:<\/strong><\/span><\/p>\n Provide a high-precision, high-surface-quality prototype (master model), directly determining the accuracy of the replica.<\/p>\n Prototype Fabrication Method:<\/strong><\/span><\/p>\n Preferably use SLA\/DLP 3D printing (accuracy \u00b10.05mm) or CNC machining (suitable for metal\/hard material prototypes).<\/p>\n Prototype Pre-treatment:<\/strong><\/span><\/p>\n Quality Control Points:<\/strong><\/span><\/p>\n Prototype dimensional tolerance \u2264\u00b10.1mm, surface free of scratches, air bubbles, dents, and clear details such as markings\/threads.<\/p>\n [\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Step 2: Mold Design and Silicone Mold Making” use_icon=”on” font_icon=”||divi||400″ icon_color=”#900721″ icon_placement=”left” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h3″ header_font=”|700|||||||” header_font_size=”25px” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n Core Objective:<\/strong><\/span><\/p>\n To create a highly elastic silicone mold with high detail reproduction, suitable for complex structures and reusable.<\/p>\n Mold Frame Construction:<\/strong><\/span><\/p>\n Design the mold frame according to the prototype dimensions, reserving a resin gate (3~8mm diameter) and venting holes (1~2mm diameter). Complex structures use a split mold (2~4 segments).<\/p>\n Silicone Selection and Mixing:<\/strong><\/span><\/p>\n Silicone Casting and Curing:<\/strong><\/span><\/p>\n Quality control points: <\/strong><\/span><\/p>\n The mold cavity is free of air bubbles and impurities; the edges are neat after disassembly, and the prototype details can be completely restored.<\/p>\n [\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”2″ _builder_version=”4.27.4″ _module_preset=”default” max_width=”1440px” box_shadow_style=”preset1″ global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Step 3: Vacuum Degassing” use_icon=”on” font_icon=”||divi||400″ icon_color=”#900721″ icon_placement=”left” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h3″ header_font=”|700|||||||” header_font_size=”25px” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n Core Objective: <\/strong><\/span><\/p>\n To eliminate air bubbles in the silicone mold and resin, preventing surface defects in the replica.<\/p>\n Mold Degassing: <\/strong><\/span><\/p>\n Reassemble the disassembled silicone mold, place it in a vacuum chamber, and evacuate to -0.09~-0.1MPa, maintaining this pressure for 15~30 minutes to remove residual air from the cavity.<\/p>\n Resin Degassing: <\/strong><\/span><\/p>\n Prepare the PU resin according to the formula (e.g., hardness, color, additives), stir thoroughly, and place it in a vacuum chamber. Degas for 15~20 minutes using the same parameters.<\/p>\n Quality Control Points: <\/strong><\/span><\/p>\n After degassing, the resin should have no visible air bubbles, and the mold cavity should be free of residual air (observable through a transparent mold frame).<\/p>\n [\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Step 4: Resin Mixing & Pouring” use_icon=”on” font_icon=”||divi||400″ icon_color=”#900721″ icon_placement=”left” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h3″ header_font=”|700|||||||” header_font_size=”25px” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n Core Objective: <\/strong><\/span><\/p>\n Precisely adjust resin properties (hardness, color, performance) to completely fill the mold cavity under vacuum.<\/p>\n Resin Selection and Mixing<\/strong><\/span><\/p>\n Vacuum Pouring<\/strong><\/span><\/p>\n Quality control points:<\/strong> <\/span><\/p>\n Precise resin ratio, no air bubbles generated during injection, and complete cavity filling (no missing material areas).<\/p>\n [\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”2″ _builder_version=”4.27.4″ _module_preset=”default” max_width=”1440px” box_shadow_style=”preset1″ global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Step 5: Curing” use_icon=”on” font_icon=”||divi||400″ icon_color=”#900721″ icon_placement=”left” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h3″ header_font=”|700|||||||” header_font_size=”25px” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n Core Objective: <\/strong><\/span><\/p>\n To fully cure the resin in the mold, achieving stable physical properties and dimensional accuracy.<\/p>\n Curing Conditions:<\/strong><\/span><\/p>\n Post-Curing Inspection: <\/strong><\/span><\/p>\n Open a corner of the mold, gently touch the product surface, and confirm that it is not sticky or dented before completely demolding.<\/p>\n Quality Control Points: <\/strong><\/span><\/p>\n The product is fully cured (hardness meets standards), with no deformation, no sticking to the mold, and no uneven coloring.<\/p>\n [\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Step 6: Demolding” use_icon=”on” font_icon=”||divi||400″ icon_color=”#900721″ icon_placement=”left” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h3″ header_font=”|700|||||||” header_font_size=”25px” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n Core Objective: <\/strong><\/span><\/p>\n To quickly remove the replica without damaging the product or mold.<\/p>\n Demolding Methods:<\/strong><\/span><\/p>\n Mold Maintenance: <\/strong><\/span><\/p>\n After demolding, wipe the mold cavity with alcohol to remove residual resin. Reapply mold release agent for future use.<\/p>\n Quality Control Points: <\/strong><\/span><\/p>\n The product is free of scratches, damage, and mold residue; the mold cavity is intact.<\/p>\n [\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_2,1_2″ use_custom_gutter=”on” gutter_width=”2″ _builder_version=”4.27.4″ _module_preset=”default” max_width=”1440px” box_shadow_style=”preset1″ global_colors_info=”{}”][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Step 7: Post-Processing” use_icon=”on” font_icon=”||divi||400″ icon_color=”#900721″ icon_placement=”left” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h3″ header_font=”|700|||||||” header_font_size=”25px” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n Core Objective: <\/strong><\/span><\/p>\n Optimize product appearance and dimensional accuracy to meet the final delivery requirements of export customers.<\/p>\n Basic Processing<\/strong><\/span><\/p>\n Surface Treatment (Optional)<\/strong><\/span><\/p>\n Quality Control Points: <\/strong><\/span><\/p>\n The product surface is free of scratches, drips, and bubbles; the logo is clear; and assembly precision meets standards.<\/p>\n [\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_2″ _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][et_pb_blurb title=”Step 8: Quality Inspection & Packaging” use_icon=”on” font_icon=”||divi||400″ icon_color=”#900721″ icon_placement=”left” _builder_version=”4.27.4″ _module_preset=”default” header_level=”h3″ header_font=”|700|||||||” header_font_size=”25px” header_line_height=”1.2em” global_colors_info=”{}”]<\/p>\n Core Objective: <\/strong><\/span><\/p>\n Ensure products meet order requirements and adapt to international logistics through compliant packaging.<\/p>\n Quality Inspection:<\/strong><\/span><\/p>\n Packaging Methods:<\/strong><\/span><\/p>\n Quality control points: <\/strong><\/span><\/p>\n Inspection pass rate \u226598%, packaging intact, labeling clear, meeting foreign trade logistics standards.<\/p>\n [\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row use_custom_gutter=”on” gutter_width=”2″ _builder_version=”4.27.4″ _module_preset=”default” max_width=”1440px” box_shadow_style=”preset1″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ _module_preset=”default” custom_padding=”|20px||20px|false|false” global_colors_info=”{}”][et_pb_cta title=”Suijin Casting Solution” button_url=”https:\/\/sjnbcasting.com\/process\/” button_text=”Know More” _builder_version=”4.27.4″ _module_preset=”default” header_font=”|700|||||||” header_text_color=”#900721″ header_font_size=”40px” body_text_color=”#000000″ body_font_size=”16px” background_enable_color=”off” use_background_color_gradient=”on” background_color_gradient_stops=”rgba(255,255,255,0.82) 0%|rgba(255,255,255,0.82) 100%” background_color_gradient_overlays_image=”on” background_image=”https:\/\/sjnbcasting.com\/wp-content\/uploads\/2025\/11\/suijin-Vacuum-Casting-process.jpg” custom_button=”on” button_text_color=”#900721″ text_orientation=”left” global_colors_info=”{}”]<\/p>\n Vacuum casting is a core technology for rapid prototyping and small-batch production in the industrial manufacturing field. Its advantages of short cycle time, high precision, low cost, and diverse materials perfectly suit the R&D iteration of hardware tools\/plastic parts and the needs of small-batch foreign trade orders. By rationally selecting materials, optimizing mold design and post-processing, rapid transformation from sample to finished product can be achieved, improving the responsiveness and order competitiveness for foreign trade customers.<\/p>\n [\/et_pb_cta][et_pb_contact_form custom_message=”Name : %%Name%%.||et_pb_line_break_holder||Email : %%Email%%. ||et_pb_line_break_holder||Company : %%Company%%. ||et_pb_line_break_holder||My message : %%message%% ” use_redirect=”on” success_message=”Thanks for contacting us . We will reply to you as soon as possible \uff01” _builder_version=”4.27.4″ _module_preset=”default” _unique_id=”1f04bc23-b0da-4ba9-a79a-2a0406a1ed8d” custom_button=”on” button_text_size=”17px” button_text_color=”#900721″ global_module=”480″ global_colors_info=”{}”][et_pb_contact_field field_id=”Name” field_title=”Name” _builder_version=”4.16″ global_colors_info=”{}” button_text_size__hover_enabled=”off” button_one_text_size__hover_enabled=”off” button_two_text_size__hover_enabled=”off” button_text_color__hover_enabled=”off” button_one_text_color__hover_enabled=”off” button_two_text_color__hover_enabled=”off” button_border_width__hover_enabled=”off” button_one_border_width__hover_enabled=”off” button_two_border_width__hover_enabled=”off” button_border_color__hover_enabled=”off” button_one_border_color__hover_enabled=”off” button_two_border_color__hover_enabled=”off” button_border_radius__hover_enabled=”off” button_one_border_radius__hover_enabled=”off” button_two_border_radius__hover_enabled=”off” button_letter_spacing__hover_enabled=”off” button_one_letter_spacing__hover_enabled=”off” button_two_letter_spacing__hover_enabled=”off” button_bg_color__hover_enabled=”off” button_one_bg_color__hover_enabled=”off” button_two_bg_color__hover_enabled=”off”][\/et_pb_contact_field][et_pb_contact_field field_id=”Email” field_title=”Email Address” field_type=”email” _builder_version=”4.16″ global_colors_info=”{}” button_text_size__hover_enabled=”off” button_one_text_size__hover_enabled=”off” button_two_text_size__hover_enabled=”off” button_text_color__hover_enabled=”off” button_one_text_color__hover_enabled=”off” button_two_text_color__hover_enabled=”off” button_border_width__hover_enabled=”off” button_one_border_width__hover_enabled=”off” button_two_border_width__hover_enabled=”off” button_border_color__hover_enabled=”off” button_one_border_color__hover_enabled=”off” button_two_border_color__hover_enabled=”off” button_border_radius__hover_enabled=”off” button_one_border_radius__hover_enabled=”off” button_two_border_radius__hover_enabled=”off” button_letter_spacing__hover_enabled=”off” button_one_letter_spacing__hover_enabled=”off” button_two_letter_spacing__hover_enabled=”off” button_bg_color__hover_enabled=”off” button_one_bg_color__hover_enabled=”off” button_two_bg_color__hover_enabled=”off”][\/et_pb_contact_field][et_pb_contact_field field_id=”Company” field_title=”Company” fullwidth_field=”on” _builder_version=”4.27.4″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_contact_field][et_pb_contact_field field_id=”Message” field_title=”Message” field_type=”text” fullwidth_field=”on” _builder_version=”4.16″ global_colors_info=”{}” button_text_size__hover_enabled=”off” button_one_text_size__hover_enabled=”off” button_two_text_size__hover_enabled=”off” button_text_color__hover_enabled=”off” button_one_text_color__hover_enabled=”off” button_two_text_color__hover_enabled=”off” button_border_width__hover_enabled=”off” button_one_border_width__hover_enabled=”off” button_two_border_width__hover_enabled=”off” button_border_color__hover_enabled=”off” button_one_border_color__hover_enabled=”off” button_two_border_color__hover_enabled=”off” button_border_radius__hover_enabled=”off” button_one_border_radius__hover_enabled=”off” button_two_border_radius__hover_enabled=”off” button_letter_spacing__hover_enabled=”off” button_one_letter_spacing__hover_enabled=”off” button_two_letter_spacing__hover_enabled=”off” button_bg_color__hover_enabled=”off” button_one_bg_color__hover_enabled=”off” button_two_bg_color__hover_enabled=”off”][\/et_pb_contact_field][\/et_pb_contact_form][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"\n
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