Dairy Vacuum
Milking Machines
Equip your dairy with an electric, oil-lubricated rotary vane milking unit for small milking groups, hospital pens and separate cow care. NexAgri supplies single- and double-bucket configurations with 25 L SS304 collection buckets and destination-specific motors.
How a Vacuum Pump Milking Machine Works
A dairy vacuum system extracts air from the sealed line to create the negative pressure required for milking. On this mobile machine, the oil-lubricated rotary vane pump, electric motor, surge tank, pulsator and collection bucket travel together on a heavy-duty wheeled trolley.
The vacuum pump constantly evacuates the surge tank to maintain stable line pressure. Clean milk moves under suction through the food-grade hose into the stainless steel bucket, while the pneumatic pulsator rhythmically alternates vacuum and atmospheric pressure inside the teat-cup liners to stimulate continuous milk letdown.
Choose this configuration for an all-in-one mobile milking station. Compare the full portable milking machine range for alternative pump configurations.
Where Mobile Vacuum Milking Fits
Small Milking Groups
Bring the milking unit directly to pens when installing fixed parlor infrastructure is impractical. The unit operates wherever standard electrical power and wash water are accessible.
Hospital & Isolation Pens
A dedicated mobile unit can support separate milk-handling routines for fresh, treated or isolation pens. Use farm-approved cleaning and separation procedures as part of the biosecurity plan.
Commercial Distributors
Standardize stocking across dairy regions. Specify universal bucket options, regional voltage/plug setups, and standard wear-part packs in batch container orders.
Single- and Double-Bucket Configurations
Select your bucket configuration based on herd layout, operator workflow and physical handling requirements. Both models feature heavy-gauge SS304 stainless steel buckets with clear inspection lids.
Single Bucket Unit
Equipped with 1 × 25 L SS304 bucket and single cluster. Ideal for single-cow handling, tight pen aisles, and individual hospital routines.
Double Bucket Unit
Equipped with 2 × 25 L SS304 buckets and dual milking clusters. Designed for two-cow simultaneous milking to increase session efficiency.
| Selection Factor | Single Bucket Configuration | Double Bucket Configuration |
|---|---|---|
| Collection Capacity | 1 × 25 L SS304 bucket (food-grade) | 2 × 25 L SS304 buckets (food-grade) |
| Operator Workflow | Preps and monitors one cow at a time | Monitors two cows simultaneously |
| Handling Weight | Lighter trolley weight; easier narrow pen navigation | Heavier when fully loaded; requires wider pen alleys |
| Throughput Benchmark | Approx. 8–10 cows per hour | Approx. 16–20 cows per hour |
Dairy Vacuum Milking Machine Configurations
The standard machine uses an oil-lubricated rotary vane pump and electric drive. Choose the bucket arrangement and motor option below; NexAgri records the selected assembly and accessories in the quotation’s Bill of Materials.
| Equipment Item | Standard Configuration / Available Options |
|---|---|
| Vacuum Pump | Heavy-duty rotary vane pump with integrated oil-lubrication system and silencer. Airflow capacity matched to single- or double-cluster demand. |
| Working Vacuum Level | Standard dairy Cow setting at 48–50 kPa (14–15 inHg). Adjustable via spring-loaded vacuum regulator; monitored via mechanical dial gauge. |
| Motor & Power Supply | 0.55 kW (Single Bucket) / 0.75 kW (Double Bucket) pure copper motor. 110 V / 220 V / 380 V; 50 Hz / 60 Hz; Single-phase or 3-phase configured per destination. |
| Collection Buckets | 1 × 25 L or 2 × 25 L SS304 stainless steel buckets with transparent polycarbonate viewing lids and silicone food-grade sealing gaskets. |
| Pulsator & Cluster | Pneumatic pulsator (standard 60:40 pulsation ratio). Stainless steel teat-cup shells with food-grade rubber or silicone liners and 240 cc claw. |
| Chassis & Mobility | Corrosion-resistant powder-coated or galvanized steel frame with heavy-duty solid rubber wheels and support legs. |
| Service & Wear Parts | Includes operational manual, spare liner pack, lid gaskets, replacement tubing, and oil reservoir maintenance guides. |
Maintenance That Protects the Milking Routine
Before Milking
Inspect hoses, lid seals and teat liners for cracks. Check the vacuum oil reservoir level, ensure the exhaust is unobstructed, and check operating gauge stability before attaching clusters.
After Milking
Flush the milk-contact lines with clean warm water, then wash with approved alkaline dairy detergent. Prevent bucket overfill to avoid milk fluid entering the vacuum tank and pump chamber.
Planned Servicing
Inspect liners, pulsator filters and drive-belt tension as part of the planned service routine. Replace wear parts and maintain vacuum-pump oil according to the operating manual and actual condition.
Plan Your Mobile Milking Equipment Order
Equipment configurations are customized around herd size, electrical parameters, and destination port logistics. Follow our straightforward procurement process to receive a verified proforma invoice.
1. Share Working Routine
Provide your total milking head, target milking duration per session, operator count, and whether the unit serves main stalls or isolation pens.
2. Confirm Specifications
Select single or double bucket capacity, provide your destination electrical standard (voltage, Hz, phase), and specify backup spare-part volumes.
3. Receive Factory Quotation
Review the comprehensive Bill of Materials (BOM), technical specification sheet, packing dimensions, and FOB/CIF delivery terms.
Complete Your Milking Equipment Package
Connect mobile milking with milk handling, vacuum equipment and routine service parts.
Milk Cans & Buckets
Stainless steel and aluminum transport cans designed for sanitary transfer between mobile units and bulk cooling tanks.
Vacuum Systems
Need stationary pumps for piped barn systems or replacement pumps? Explore our centralized high-capacity vacuum units.
Liners & Tubes
Silicone and rubber liner, pulsation-tube and milk-hose options for routine servicing; confirm the selected material specification with the quotation.
Vacuum Pump Milking Machine FAQs
Practical engineering answers for dairy farms, equipment distributors and procurement teams.
What components are included in a complete mobile vacuum milking machine?
The standard complete mobile unit includes an oil-lubricated rotary vane vacuum pump, electric motor, vacuum surge tank, adjustable regulator, vacuum dial gauge, pneumatic pulsator, 25 L SS304 milking bucket, teat-cup cluster with liners, food-grade hoses, and an integrated wheeled chassis.
Should I choose a single-bucket or double-bucket configuration?
Choose a single-bucket machine for individual cow milking, narrow pen alleys, or hospital pens. Choose a double-bucket unit if your operator routinely handles two cows simultaneously. Keep in mind that a double-bucket unit increases loaded transport weight and requires sufficient aisle room.
How many cows can this machine milk per hour?
As a baseline benchmark: a single-bucket machine typically completes 8–10 cows per hour, while a double-bucket unit achieves 16–20 cows per hour. Exact throughput depends on cow yield, individual milk-out times, cluster transfer speed, and manual bucket emptying intervals.
Does this rotary vane pump require lubricating oil?
Yes. The standard configuration uses an industrial oil-lubricated rotary vane pump for durability and continuous vacuum stability. It includes an integrated oil drop container and silencer. Operators must check the oil reservoir level before operation and use standard ISO VG 68 or 100 vacuum pump oil.
Can milk enter and damage the vacuum pump?
The collection bucket is designed to keep milk in the collection path during normal operation. However, overfilling the bucket or tipping it over can allow milk to enter the vacuum tank. Operators should monitor the transparent lid and empty milk before it reaches capacity to protect the pump chamber.
How should the machine and cluster lines be cleaned?
Immediately after each session, draw lukewarm water through the cluster cups to flush residual milk, follow with an approved warm alkaline dairy detergent solution, and finish with a clean water rinse. Drain lines thoroughly. Never spray high-pressure water directly at the electric motor or switchbox.
Can the motor be customized to match our destination grid?
Yes. NexAgri customizes the motor wind and capacitor configuration to match your local electrical supply. Available options include 110 V / 220 V / 240 V / 380 V at both 50 Hz and 60 Hz in single-phase or three-phase setups. Please confirm destination voltage when requesting a quote.
Can I operate this machine using a portable field generator?
Yes. Because electric induction motors draw 2.5 to 3 times their rated current during startup, ensure your generator has adequate surge capacity. We recommend a minimum of 2.5 kVA to 3.0 kVA rated generator output for a 0.75 kW motor machine to avoid voltage sag and stalling.
Compare our piston pump milking machine or explore centralized vacuum systems for fixed installations.
Request Vacuum Milking Machine Specifications
Send your cow numbers, single- or double-bucket preference, destination and electrical supply. NexAgri will return an initial configuration response within 24 business hours.
Single and Double Bucket configurations available.