Dairy Feed Bagging Machine in New Zealand

From the DCS series, the DCS-50K (gravity feed, high speed) was selected. Why this model?

• 50kg capacity: Handles 10-50kg bags – perfect for 40kg and 50kg dairy feed
• High speed: 5-6 bags per minute for 25kg, 4-5 for 50kg – faster than his old machine
• Accuracy: ±0.2% dynamic = ±100 grams on 50kg (actual performance proved better)
• Heavy-duty construction: Built for continuous operation with heavy bags
• Anti-shock device: Essential for accurate weighing of heavy bags

Hamish chose the DCS-50K with seam sealing only (sewn bags) – New Zealand dairy bags are standard sewn woven polypropylene.

What He's Packaging – New Zealand Dairy Feed

New Zealand's dairy industry is world-renowned. Hamish's mill produces:

• Lactating cow feed (pellets, 5-6mm): 70% of production – 40kg and 50kg bags
• Dairy calf starter (pellets and crumbles, 3-4mm): 20% of production – 25kg and 40kg bags
• Dry cow feed (pellets, 5-6mm): 10% of production – 40kg and 50kg bags

Most production is in 40kg and 50kg bags. The mill runs 10-hour shifts, five days a week.

The raw materials are typical for New Zealand dairy feed:

• Barley (local – Canterbury is a major grain region): 30-40%
• Corn (imported or from North Island): 20-30%
• Palm kernel expeller (imported – common in NZ dairy feed): 15-20% – high-energy supplement
• Soybean meal (imported): 10-15%
• Minerals and vitamins (including magnesium for grass staggers prevention): 3-5%

The pellets are dry (11-12% moisture), hard, durable – free-flowing. Perfect for gravity feed.

Installation – Built for Heavy Duty

The DCS-50K dairy feed bagging machine arrived at the Port of Lyttelton – the main port for Canterbury, located near Christchurch.

Shipping time from Qingdao to Lyttelton is about 25-30 days. The machine was packed in a 20-foot container with:

• DCS-50K main unit (gravity feeder, scale)
• Spare bag clamp rubbers (four sets – heavy-duty for 50kg bags)
• Spare pneumatic valves (two sets)
• Installation manual and electrical diagram in English

Customs clearance in Lyttelton took about 4 days. Total landed cost was about 22% higher than the FOB price.

Installation took two days. The old bagging machine was moved to storage (Hamish kept it as a backup). The DCS-50K was positioned on a reinforced concrete slab – 50kg bags are heavy, so the machine needs a solid foundation. His team poured a new slab: 150mm thick with rebar.

The electrical hookup was straightforward (400V, 50Hz three-phase – New Zealand standard). The pneumatic system required clean, dry air at 0.5MPa. Hamish upgraded his compressor with a dryer.

The calibration for 40kg and 50kg was critical. Hamish's team ran 100 test bags at each weight, measuring on a certified scale. Results for 50kg:

• Average error: 45 grams (0.09% of 50kg)
• Maximum error: 65 grams (0.13%)
• Well within the ±0.2% spec

Performance – One Shift Instead of Two

After six months of operation, Hamish documented the following results:

Old machine (before):

• Speed: 3-4 bags per minute for 40kg, 2-3 for 50kg
• Daily output (10-hour shift): 60-80 tons (depending on bag size)
• Required: Second shift (8 hours) to meet 120-ton daily demand
• Night shift cost: 8 hours × 1.5x rate × 3 workers × 220 days = approximately NZD 79,000 (about €44,000)
• Accuracy: ±100-200 grams (0.25-0.5% error)
• Giveaway: Approximately 0.35% of production = 157 tons/year at NZD 550/ton = NZD 86,000 (about €48,000)
• Worker injuries: 2 back strain incidents in the previous year

DCS-50K (after):

• Speed: 5-6 bags per minute for 40kg, 4-5 for 50kg
• Daily output (10-hour shift): 100-120 tons – enough to meet demand
• Night shift: ELIMINATED – NZD 79,000 saved per year
• Accuracy: ±40-60 grams (0.08-0.12% error)
• Giveaway: Approximately 0.09% of production = 40 tons/year = NZD 22,000 (about €12,000)
• Worker injuries: Zero in six months (improved ergonomics)

Customer Feedback – Hamish's Experience

Here's what Hamish said after six months (paraphrased from a conversation):

"The old machine was the bottleneck. We were producing 120 tons of feed per day, but the bagging line could only handle 80 tons. We had to run a night shift just for bagging. That's expensive – night shift rates, lighting, supervision, everything.

"The DCS-50K changed that. Now we bag 120 tons in one shift. No night shift. The machine pays for itself in labor savings alone.

"The accuracy is also much better. On 50kg bags, being off by 150 grams doesn't sound like much. But when you bag 2,400 bags a day (120 tons), that's 360 kg of giveaway every day. Over a year, that's 90-100 tons of feed given away. Now we're within 50 grams. That's 120 kg per day. Much better.

"But the biggest win has been worker safety. Lifting 50kg bags repeatedly is hard on the body. Our old machine required workers to lift bags off the scale and onto pallets. The DCS-50K has a roller conveyor that moves bags to the sewing station, and a chute that slides them onto pallets. No heavy lifting. My workers are happier, and we haven't had a back injury since installation.

"A few issues: The bag clamp rubbers wear faster with 50kg bags – the weight puts more stress on them. We change them every 15,000 bags instead of 25,000. We buy them in packs of 10. The machine also needs a solid foundation – the vibration from 50kg bags dropping is significant. Our concrete slab is 150mm thick with rebar. That's fine.

"Would I recommend this machine? Yes. For any dairy feed mill doing heavy bags, the DCS-50K is the right choice. It's fast, accurate, and with the conveyor and chute, it's much safer for workers."

Why 40-50kg Bags Are Different

Packing 40-50kg bags is not the same as packing 25kg bags. Here's what Hamish learned:

• Weight: 50kg bags are twice as heavy as 25kg bags. The bag clamp must hold securely. The rubbers wear faster.
• Worker safety: Lifting 50kg bags repeatedly causes back injuries. Hamish added a roller conveyor and pallet chute to eliminate lifting. These were not included with the DCS-50K – he added them locally. Cost: about NZD 3,000. Money well spent.
• Vibration: A 50kg bag hitting the scale creates more shock. The DCS-50K's anti-shock device is essential. Hamish's technician adjusted it carefully during commissioning.
• Foundation: The machine needs a solid base. Hamish poured a 150mm reinforced concrete slab. No vibration issues.

Worker Safety – The Unspoken Benefit

Hamish's old machine required workers to lift filled bags off the scale and onto pallets. For 50kg bags, that's a lot of heavy lifting. In the year before installation, two workers had back strain injuries.

With the DCS-50K dairy feed bagging machine in New Zealand, Hamish implemented a new workflow:

1. Operator puts empty bag on the clamp
2. Machine fills via gravity (10-12 seconds for 50kg)
3. Operator slides bag onto roller conveyor (no lifting – just pushing)
4. Conveyor moves bag to sewing station
5. Sewing operator sews the bag
6. Bag slides down a chute onto a pallet (no lifting)

Total heavy lifting: ZERO. Workers still push and guide bags, but they don't lift them.

Hamish said: "The safety improvement alone was worth the investment. No back injuries in six months. My workers are happier. Less sick leave."

The Sealing Method – Seam Only

Hamish uses seam sealing only – sewn bags. Why?

• New Zealand dairy feed bags are woven polypropylene (water-resistant) or heavy paper
• 50kg bags need strong seams – sewing is stronger than heat sealing
• Heat sealing is not required

The workflow for 50kg bags:

1. Operator puts empty bag on the clamp
2. Machine fills via gravity (10-12 seconds for 50kg)
3. Operator slides bag onto roller conveyor
4. Conveyor moves bag to sewing station (about 3 meters)
5. Second operator sews the top (18-20 seconds)
6. Bag slides down chute onto pallet

Two operators, 4-5 bags per minute for 50kg. The conveyor and chute eliminate heavy lifting.

Shipping – Qingdao to Lyttelton

The DCS-50K dairy feed bagging machine shipped from Qingdao to Port of Lyttelton, New Zealand – the main port for the Canterbury region.

Shipping time from Qingdao to Lyttelton is about 25-30 days. The route goes through the South China Sea, past Australia, and across the Tasman Sea.

The machine was packed in a 20-foot container. Customs clearance in Lyttelton took about 4 days. Total landed cost was about 22% higher than the FOB price.

The truck transport from Lyttelton to the mill in Canterbury was short – about 20km, roughly 30 minutes.

What Hamish Learned – Lessons for Other Dairy Feed Mills

After six months of running the DCS-50K, Hamish shared several observations:

• Lesson 1: Heavy bags need heavy-duty preparation. The foundation must be solid (150mm reinforced concrete). The bag clamp rubbers wear faster – keep spares. The anti-shock device must be adjusted carefully.
• Lesson 2: Worker safety is not optional. Hamish added a roller conveyor and pallet chute. These cost NZD 3,000 but have prevented back injuries. Worth every dollar.
• Lesson 3: One shift is cheaper than two. The DCS-50K's speed allowed Hamish to eliminate a night shift, saving NZD 79,000 per year. The machine paid for itself in labor savings alone.
• Lesson 4: Calibrate for each bag size. The DCS-50K handles both 40kg and 50kg bags, but calibration takes 5 minutes. Hamish's team does it every time they switch sizes.
• Lesson 5: Train workers on the conveyor system. The roller conveyor and pallet chute are simple, but workers need to learn the flow. Hamish spent an hour training each worker. No issues.

What RICHI Provided Beyond the Machine

RICHI provided several services that helped Hamish get the DCS-50K operational:

• English documentation: The manual was in English – clear and detailed.
• Heavy-duty rubber recommendation: RICHI recommended a harder rubber compound for the bag clamps to handle the 50kg weight. Hamish ordered the heavy-duty rubbers.
• Anti-shock adjustment guidance: RICHI provided specific instructions for adjusting the anti-shock device for 50kg bags.
• Remote support: When Hamish had questions about calibration, a RICHI technician walked him through it via video call. Total time: 25 minutes.

Is a Dairy Feed Bagging Machine Right for Your Operation?

For a dairy feed mill that packages heavy bags (40-50kg) for feedlots and large farms, the DCS-50K is the recommended choice.

Consider the DCS-50K if:

• Your product is dry pelleted dairy feed
• You package 40kg or 50kg bags (or a mix of sizes)
• You need 4-5 bags per minute for heavy bags
• Your annual production is 30,000-80,000 tons

Consider adding a roller conveyor and pallet chute if:

• You want to eliminate heavy lifting and reduce injury risk

For Hamish's mill, the DCS-50K was the right investment. It eliminated a night shift, reduced giveaway, improved worker safety, and paid for itself in less than two months.

Final Thoughts

If you're a dairy feed mill supplying large farms and feedlots, don't underestimate the demands of 40-50kg bagging. The weight changes everything – from machine setup to worker safety.

The DCS-50K gravity-fed bagging machine is designed for heavy bags. It's fast (4-5 bags per minute for 50kg), accurate (±0.2% dynamic), and built for continuous operation.

With a solid foundation, proper anti-shock adjustment, heavy-duty rubbers, and ergonomic conveyors, it will handle heavy bags safely and efficiently.

RICHI offers documentation in English, heavy-duty rubber compounds, and remote support. Contact RICHI Machinery through the website with your bag sizes, annual tonnage, and production capacity for a recommendation. Tell them about your bag weight – 40-50kg bags require different settings than 25kg bags. Also ask about ergonomic add-ons like conveyors and chutes – they can make a big difference for worker safety.