Sand Molding Machine for Foundries | Specifications & Verification

Product Specifications

Technical details and manufacturing context for Sand Molding Machine

Definition

A sand molding machine is a standalone industrial device used in foundries to produce sand molds for metal casting. It compacts specially prepared molding sand around a pattern to create precise cavities that will form the final metal component. These machines ensure consistent mold density and dimensional accuracy, which is critical for producing defect-free castings. They are essential equipment in both green sand and chemically bonded sand casting operations. The machine operates by filling a mold box with sand, then applying mechanical pressure, vibration, or pneumatic force to compact the sand around the pattern. After compaction, the pattern is removed, leaving a negative impression that will be filled with molten metal. Typical specifications include a molding force of 100–400 kN, pattern size capacity up to 800×800 mm, cycle time of 15–30 seconds, and mold box sizes up to 1000×800 mm. Power consumption ranges from 5.5 to 15 kW, with operating pressure of 0.5–0.7 MPa. Mold hardness is typically 85–95 GF, positioning accuracy ±0.05 mm, and noise level 75–85 dB(A) (referenced to ISO 11202). Machine weight ranges from 3000 to 8000 kg, with overall dimensions from 2000×1500×2500 mm to 3500×2500×3500 mm. Sand filling is typically by shooting. These values are directory reference ranges and must be confirmed for the specific model and application. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The machine compacts molding sand around a pattern using mechanical pressure, vibration, or pneumatic force to create a rigid mold with precise cavity dimensions. After compaction, the pattern is removed, leaving a negative impression that will be filled with molten metal. The process involves filling the mold box with sand, then applying force to achieve uniform density. The pattern is then extracted, and the mold is ready for casting. This ensures accurate reproduction of the pattern geometry.

Common Materials

Cast Iron, Steel, Hardened Tool Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Molding ForceRequired	100–400 kN	Maximum compaction force applied to sand during mold formation
Pattern Size CapacityRequired	400×400–800×800 mm	Maximum dimensions of pattern that can be accommodated
Cycle TimeRequired	15–30 seconds	Time required to complete one molding cycle
Mold Box SizeRequired	500×400–1000×800 mm	Dimensions of the mold flask or box the machine can handle
Power ConsumptionRequired	5.5–15 kW	Electrical power required for operation
Operating Pressure	0.5–0.7 MPa	Pneumatic pressure for clamping and squeezing
Mold Hardness	85–95 GF	Hardness of the mold surface, affects casting quality
Positioning Accuracy	±0.05 mm	Accuracy of pattern and mold alignment
Noise Level	75–85 dB(A)	Operational noise, affects workplace environmentISO 11202
Machine Weight	3000–8000 kg	Affects installation and foundation requirements
Dimensions (L×W×H)	2000×1500×2500–3500×2500×3500 mm	Overall footprint for layout planning
Sand Filling Method	Shooting	Method of sand filling, affects mold density

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Compaction Head Part
Applies pressure to compact sand around the pattern

Material: Hardened Steel
Pattern Plate Part
Holds the pattern during mold formation

Material: Cast Iron or Steel
Mold Box Clamping System
Secures the mold flask during compaction

Material: Steel
Vibration Table Optional
Provides vibration to assist sand compaction

Material: Steel with Rubber Mounts
Control Panel
Operator interface for machine control and parameter setting

Material: Stainless Steel Enclosure

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Sand Molding Machine.

Manufacturers of Sand Molding Machine

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Qingdao Huaqing Amur Foundry Machinery Co., Ltd.

Qingdao, Shandong, CN

Also makes: Shot Blasting Machine

Listed on the company's own website · profile compiled by CNFX from public sources

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Frequently Asked Questions

What is the typical molding force range?

The directory lists a molding force range of 100–400 kN. This is a reference range; the actual force for a specific model must be confirmed with the manufacturer.

What pattern sizes can the machine accommodate?

The pattern size capacity is listed as 400×400 mm to 800×800 mm. Verify the exact capacity for the model you are considering.

What is the cycle time?

Cycle time is typically 15–30 seconds per molding cycle. This can vary based on sand type and complexity.

What standards are referenced?

Operating pressure references, and noise level references ISO 11202. These are verification references, not proof of compliance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 10 bar (compressed air systems)
flow rate:	0.5-5.0 m³/h (sand throughput)
mold size:	Up to 1000x1000x500 mm
cycle time:	30-180 seconds per mold
temperature:	Ambient to 50°C (operating environment)
slurry concentration:	Not applicable (dry sand process)

Sand Molding Machine

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