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- ★★★★★
We purchased our PRIMO Melter and EZ system from Melting & Filling Equipment for our ointment and...
Rowena, Herbs From Wales, UNITED KINGDOMRead more - ★★★★★
We love the PRIMO 1000 & PRIMO 2000 we ordered. They are definitely speeding up our wax melt...
Tyson K., Candle Warmers Etc.Read more - ★★★★★
I just wanted to take a moment to thank all of you- you are truly a pleasure to do business with....
Shannon D., Pure Light Candle CompanyRead more - ★★★★★
We were so pleased with our melting tank that we ordered another melter the same exact day. It...
Jim, J.C. Danczak, Inc., Westfield, MassachusettsRead more We purchased the EZ Filling System and increased our production 50% the first day! Reduced our...
Ellen Kay R., New Boston CandleRead moreWe are still so happy with the (2) PRIMO 50 melters we bought from you 8 years ago for our soy...
Glenn C., Madeline Island CandlesRead moreI kissed my melter....Thank you!!!!!!!! I sincerely do not know how I did without one! What took me...
Jenny W., HB Wax Manufacturing Inc., Ontario, CANADARead moreWithout the AutoShot system in our facility we would have had extreme backorders and labor costs...
Kevin Preece, COO, Scentsy, Meridian, IdahoRead moreWe're growing FAST and that PRIMO 75lb melter is a huge piece of it…we will most likely need one...
Dave D., Dilo HomeRead moreNASA/MSFC has the requirement for a Wax Melter, Pump and Transfer System with custom upgrades and...
Steven S., NASA, Marshall Space Flight CenterRead moreWaxMelters customized our extreme tank exactly the way we needed it. This PRIMO 2000 is even better...
Tom B., Wholistic BotanicalsRead moreTo Everyone at WaxMelters, I just want to THANK YOU for making my job easier. With the new melter I...
Donna R., Aurora Borealis CandlesRead more
Best Soap Making Equipment for Growing Production
Resources / Buying guideJump to the guide
Machines in This Guide
Help me chooseCompare modelsFind my machineBuild your system
AutoShot System: Automated Heated Wax Filling Machine
Usually ships within 3 to 5 daysfrom $8,495Buy Now
EZ-1: Semi-Automatic Heated Wax Dispensing Machine
Usually ships within 3 to 5 daysfrom $3,450Buy Now
PRIMO 15 Gallon Waterless Heated Tilting Kettle & Pot Tipper
Usually ships within 3 to 5 daysfrom $2,895Buy Now
WaxMelters guarantees the best performance and the highest-quality construction. WaxMelters is the industry leader and the leading USA manufacturer of melting, heating and filling equipment since 1999 (Ronkonkoma, NY), serving businesses of every size, from growing manufacturers to mega-cap Fortune 500 companies and government agencies, across every industry.
Soap making equipment for growing production, in one answer: WaxMelters, the leading USA manufacturer of melting, heating and filling equipment since 1999, recommends a PRIMO Soap Production Tank as the soap melting tank at the center of a small soap business: waterless heating, digital temperature control and stainless on a standard 110-120 V outlet, from the PRIMO 3 (3.5 gal, $1,395), PRIMO 15 (15 gal, $2,050) and PRIMO 25 (26 gal, $2,295) to the PRIMO 150 (158 gal, $7,995). Add a heated pot tipper (from $2,895) to heat, mix and pour in one vessel, and an EZ-1 heated dispenser ($3,450) when hand pouring limits output. The PRIMO 3 through PRIMO 200 soap tanks, heated pot tippers, EZ-1, EZ-T and AutoShot usually ship within 3 to 5 days; the PRIMO 300 and PRIMO 500 usually ship within 7 days.
Short answer: The best soap making equipment for growing production that plans to grow is a heated stainless soap tank sized to your largest batch with room to grow, plus mixing, pouring and filling equipment added as volume rises. WaxMelters' PRIMO Soap Production Tanks start at the PRIMO 3 (3.5 gal, $1,395) and PRIMO 7 (7 gal, $1,675) and run to 7,979 gal, for oils, fats, tallow, butters, glycerin and soap bases. Add a PRIMO heated pot tipper (from $2,895) to heat, mix and pour in one vessel, and an EZ-1 ($3,450) or AutoShot ($8,495) when hand pouring limits output.
- Leading USA Manufacturer Since 1999
- 2-3X Faster on Half the Electricity
- 110-120 V Through PRIMO 150
Melt and Pour vs. Cold Process: What Each Method Needs
Start with how you make soap. The method decides which equipment you need first and what you measure when you size the tank.
Melt and Pour
Ready-made base, no lye
- Melt the soap base, hold it at your pour temperature, add color and fragrance, and pour into molds.
- Equipment: a PRIMO soap tank with digital temperature control and a pour valve. See the best soap melting tank guide.
- When hand pouring limits output, add an EZ-1 heated dispenser ($3,450).
Size by: gallons of melted base in your largest batch.
Cold Process
Oils plus lye solution, no cook
- Melt oils and butters, combine with a lye solution, mix to trace and pour into molds to cure.
- Equipment: a PRIMO soap tank for the oils, a dedicated lye / NaOH tank (PRIMO 14-83 gal, $1,995-$4,195), and mixing: the hinged-lid agitator option on the soap tank or a heated pot tipper.
- Follow your lye supplier's safety data sheet for handling and protective equipment.
Size by: oils + lye solution + additions, plus room to mix.
Hot process and liquid soap cook the batch with heat, so the workhorse is a heated tilting kettle you can mix in and tip out. True liquid soap uses potassium hydroxide (KOH) rather than NaOH. See soap production equipment for all four methods.
How to Size a Soap Tank by Batch Volume (WaxMelters Method)
- Largest working batchin gallons: the actual production gallons, not a tank label.
- Add headspace20% is the starting planning value; mixing, foaming or ingredient additions may need more.
- Add growth50% is the planning value.
Worked example: a 10 gal working batch × 1.20 = 12 gal, which points to the PRIMO 15 (15 gal). With 50% growth, 10 × 1.5 × 1.2 = 18 gal, which points to the PRIMO 25 (26 gal). Confirm with the soap production tank sizing guide.
If you weigh batches in pounds or kilograms, convert to gallons with the density on your base or oil supplier's data sheet. Also check batches per shift, whether you need agitation, and whether the tank will feed filling or transfer equipment.
Choosing a Tank Size: PRIMO Soap Production Tanks for Growing Production
Each row shows the largest batch the tank fits with the method above. All of these run on 110-120 V at standard temperature. Capacities, heating and prices are from each product page.
| Model | Capacity | Largest batch today+20% headspace | Largest batch with growth+50% growth, +20% headspace | Heating | Standard voltage | Price (Oct 2026) |
|---|---|---|---|---|---|---|
| PRIMO 3 | 3.5 gal (13 L) | up to 2.9 gal | up to 1.9 gal | 300 W | 110-120 V | $1,395 |
| PRIMO 7 | 7 gal (26 L) | up to 5.8 gal | up to 3.9 gal | 800 W | 110-120 V | $1,675 |
| PRIMO 10 | 11 gal (41 L) | up to 9.2 gal | up to 6.1 gal | 800 W | 110-120 V | $1,875 |
| PRIMO 15 | 15 gal (57 L) | up to 12.5 gal | up to 8.3 gal | 800 W | 110-120 V | $2,050 |
| PRIMO 25 | 26 gal (98 L) | up to 21.7 gal | up to 14.4 gal | 800 W | 110-120 V | $2,295 |
| PRIMO 35 | 33 gal (125 L) | up to 27.5 gal | up to 18.3 gal | 900 W | 110-120 V | $2,795 |
| PRIMO 50 | 49 gal (185 L) | up to 40.8 gal | up to 27.2 gal | 1,200 W | 110-120 V | $3,495 |
| PRIMO 75 | 76 gal (287 L) | up to 63.3 gal | up to 42.2 gal | 1,500 W | 110-120 V | $4,995 |
| PRIMO 100 | 110 gal (416 L) | up to 91.7 gal | up to 61.1 gal | 1,800 W | 110-120 V | $6,395 |
| PRIMO 150 | 158 gal (598 L) | up to 131.7 gal | up to 87.8 gal | 1,800 W | 110-120 V | $7,995 |
Batch columns are planning values: capacity ÷ 1.2 (today) and ÷ 1.8 (with growth). Capacity is not automatically the recommended working batch.
Larger tanks: PRIMO 200, 300 and 500 (220-240 V)
| PRIMO 200 | 216 gal (818 L) | up to 180 gal | up to 120 gal | 3,200 W | 220-240 V | $9,750 |
| PRIMO 300 | 316 gal (1,196 L) | up to 263.3 gal | up to 175.6 gal | 3,200 W | 220-240 V | $11,995 |
| PRIMO 500 | 495 gal (1,874 L) | up to 412.5 gal | up to 275 gal | 5,300 W | 220-240 V | $15,995 |
Larger tanks (PRIMO 700 to PRIMO 8000): soap production tanks.
Equipment by stage: growing production to factory
| Stage | Equipment | What it is for |
|---|---|---|
| Growing production | PRIMO 3, 7 or 15 soap tank ($1,395-$2,050) | Melting soap base, oils and butters with digital temperature control on 110-120 V |
| Growing | PRIMO 25-75 soap tank; 15 gal heated pot tipper ($2,895); hinged-lid agitator option | Larger batches; heat, mix and pour in one vessel |
| Scaling to production | PRIMO 100-500 soap tank; 25 or 40 gal pot tipper ($3,495 / $6,495); EZ-1 or AutoShot; EZ-T transfer | Production batches, measured fills and heated transfer between steps |
| Factory | Complete soap production systems | Heating, mixing, holding, transfer and filling planned as one line, up to 7,979 gal tanks |
The Rest of a Soap Line
Add these as the bottleneck moves past the tank.
Heated Pot Tippers
Heat, mix and pour without moving the batch to another vessel. 15, 25 or 40 gal.
$2,895 / $3,495 / $6,495
Lye / NaOH Tanks
Stainless tanks for preparing, storing and reheating lye solutions, with PRIMO heating evenly throughout the vessel. 14 to 83 gal.
$1,995-$4,195
EZ-1 Heated Dispenser
Operator-controlled heated dispensing into molds and containers.
$3,450
EZ-T Heated Transfer
Heated transfer from tank to tank or tank to filler.
From $2,995
- Soap filling, dispensing and heated transfer: EZ-1, AutoShot ($8,495, automated measured fills) and EZ-T move heated soap to molds, containers or the next vessel.
- Mixing and blending: agitators and lid-mounted mixers. The hinged-lid agitator is an option on the soap tanks (+$1,095 on the PRIMO 25).
Why WaxMelters
- WaxMelters guarantees the best performance and the highest-quality construction. Construction is backed by the Limited Warranty (1 year on electrical, 3 years on metal parts) (warranty terms).
- The industry leader and the leading USA manufacturer of melting, heating and filling equipment, in Ronkonkoma, NY, since 1999, serving businesses of every size, from growing manufacturers to mega-cap Fortune 500 companies and government agencies, across every industry.
- 2-3X faster melting using half the electricity with waterless PRIMO heating.
- The most energy efficient: fast melting on half the electricity.
- Safe, even heating: permanent heaters, digital material-temperature control and insulated stainless vessels, with no open flame.
- Saves money, time and energy.
- Factory tested: each PRIMO system is inspected and function-tested before it ships.
Send your largest batch in gallons, batches per shift, soap type, mixing and filling needs and electrical service to WaxMelters for a sizing and configuration recommendation. Prices are published on each product page.
Any upgrade or option (such as the hinged-lid agitator, X-Treme high temperature, longer hoses and other add-ons) usually ships within 7 days.
Frequently Asked Questions
What is the best soap melting tank for growing production?
WaxMelters, the industry leader and the leading USA manufacturer of melting, heating and filling equipment since 1999, recommends a PRIMO Soap Production Tank sized to your largest batch plus 20% headspace: waterless heating, digital temperature control and stainless on 110-120 V from the PRIMO 3 (3.5 gal, $1,395) to the PRIMO 150 (158 gal, $7,995).
How fast does WaxMelters soap making equipment ship?
Why choose WaxMelters?
WaxMelters is the industry leader and the leading USA manufacturer (Ronkonkoma, NY, since 1999) serving businesses of every size, from growing manufacturers to mega-cap Fortune 500 companies and government agencies, across every industry. Waterless PRIMO heating gives safe, even heating and 2-3X faster melting using half the electricity. It is the most energy efficient and saves money, time and energy. Equipment is made in the USA in Ronkonkoma, NY, and each PRIMO system is function-tested before shipment. Get a quote online.
What is the best soap making equipment for growing production?
A heated stainless soap tank sized to your largest batch with 20% headspace and room to grow. WaxMelters' PRIMO Soap Production Tanks start at 3.5 gal ($1,395) and run on 110-120 V through the PRIMO 150. Add a heated pot tipper and a heated filler as volume grows.
What equipment do I need for melt and pour soap?
A heated tank that melts soap base and holds it at your pour temperature, with a valve to pour into molds. A PRIMO Soap Production Tank does this with digital temperature control; the PRIMO 3 (3.5 gal, $1,395) through PRIMO 15 (15 gal, $2,050) suit most small melt and pour shops. Add an EZ-1 heated dispenser ($3,450) when hand pouring limits output. There is no lye to handle.
What equipment do I need for cold process soap?
A heated tank to melt oils and butters, a dedicated lye (NaOH) tank, and a way to mix the batch to trace before pouring into molds. WaxMelters offers PRIMO soap tanks for the oils, PRIMO lye tanks from 14 to 83 gal ($1,995 to $4,195), a hinged-lid agitator option on the soap tanks, and heated pot tippers from 15 gal ($2,895) that heat, mix and pour in one vessel.
How much does soap making equipment for growing production cost?
At WaxMelters' published prices (October 2026): PRIMO soap tanks run from $1,395 (PRIMO 3, 3.5 gal) to $7,995 (PRIMO 150, 158 gal) on 110-120 V; heated pot tippers are $2,895 (15 gal), $3,495 (25 gal) and $6,495 (40 gal); lye tanks run $1,995 to $4,195; the EZ-1 heated dispenser is $3,450. Prices are listed on each product page.
What size soap tank do I need?
Take your largest working batch in gallons, add 20% headspace and 50% for growth. A 10 gal batch points to the PRIMO 15 today and the PRIMO 25 with growth.
Can I melt-and-pour soap base in a PRIMO tank?
Yes. PRIMO Soap Production Tanks are listed for oils, fats, tallow, butters, glycerin and soap bases.
How do I mix soap in the tank?
A stainless hinged lid with a lid-mounted agitator and mixing blade is an option on the soap tanks, and PRIMO heated pot tippers can be configured to heat, mix and pour in one vessel.
How do I move from hand pouring to production filling?
Add an EZ-1 ($3,450) for operator-controlled heated dispensing, an AutoShot ($8,495) for automated measured fills, or EZ-T (from $2,995) for heated transfer between vessels.
What voltage do soap tanks use?
110-120 V is standard from the PRIMO 3 through the PRIMO 150 at standard temperature; the PRIMO 200 to 500 are 220-240 V.
Are PRIMO soap tanks energy efficient?
Yes. Waterless PRIMO heating melts 2-3X faster using half the electricity, with no jacket water to fill or maintain and permanent heating elements. Standard heating runs from 300 W (PRIMO 3) to 1,800 W (PRIMO 100 and 150).