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Bag palletizer robot for plants in Mexico

Cement, flour, sugar, feed, chemicals. The 25 kg bag no longer rides on anyone's back.

Request a palletizer quote What NOM-036 says

A bag palletizer robot picks 20 to 50 kg sacks with a gripper built for that load and stacks them interlocked on a pallet. NOM-036-1-STPS-2018, Mexico's federal standard on manual handling, limits manual lifting to 25 kg for men and 20 kg for women aged 18 to 45. Target Robotics builds the palletizer in San Luis Potosí with FANUC robots.

Two FANUC robots with yellow tools, a blue conveyor and pallets of bags
Load
20 to 50 kg bagsWith a gripper built for that load
Speed
Based on your bags per minuteThe data sheet for each version comes with the quote
Space
About 6 x 6 m with fencingOrder of magnitude. The layout comes from your load and your floor
Public price
US$120,000 to US$550,000CSi and Kaufman, November 3, 2026
Delivery
12 weeksLead time confirmed by Target, November 2026

Palletizing bags takes a different machine

A bag is soft, it deforms and it sheds dust. The gripper, the infeed conveyor and the pattern all change.

  • A gripper that holds from below

    Forks or a claw, because on woven polypropylene and porous paper, vacuum cannot safely hold 25 kg.

  • Flattening before the pick

    A compacting or turning conveyor evens out the bag. A flat layer depends on it.

  • 5-bag interlocked pattern

    Two lengthwise and three crosswise, reversed on the next layer. Since a bag has no corners to tie in, stability comes from the pattern.

  • Dust

    In cement and flour, motors get protected and the cleaning interval gets shorter. The maintenance contract adjusts to that environment.

120 100
Layer of 5 bags of 60 x 40 cm on a 120 x 100 cm pallet.
120 100
The next layer, reversed. The seams no longer line up.

Bags and sacks: is it the same thing?

It is the same load. In Mexico it goes by three names: saco on the plant floor, where it gets palletized, and costal or bulto in the warehouse and in the field, where it gets stacked. If you searched for how to stack 25 kg bags, we have the full guide.

A 25 kg bag, 1,920 times per shift

At 25 kg per bag, a line running 4 bags per minute moves 48 metric tons in an 8-hour shift, by hand.

It is simple math: 4 x 60 x 8 x 25 kg. Getting that load off the payroll is a safety argument as well as a cost one: in 2024, IMSS, Mexico's social security institute, recorded 57,466 accidents from overexertion, travel and privation (Memoria Estadística 2024, in Spanish). Manual or robotic, row by row.

Bags of animal feed and pet food kibble

It is the same bag cell, with two extra points of care: the product settles inside the bag, and a laminated bag is smoother than woven polypropylene or paper.

In Mexico these products are called alimento balanceado (animal feed) and croquetas (kibble). Feed plants also use two words that sound almost alike: the peletizadora (pellet mill) forms the pellet and the paletizadora (palletizer) stacks the bags on the pallet.

Palletizing, stacking and pelletizing

  • Woven polypropylene or paper bag

    Animal feed, as pellets or as meal, shifts inside the bag. It gets flattened before the pick and lifted from below, with forks.

  • Laminated kibble bag

    It is the package that reaches the shelf, and its film is smoother. The gripper pressure is adjusted, the pattern is interlocked and, where needed, slip sheets go between layers.

  • Small bag

    Small sizes usually travel in a bundle or a case, and the robot palletizes that unit. See cases or pouches and trays.

  • FANUC reference

    Cells where bags are flattened and inspected before they reach the robot, and an M-410iC with fork tooling that palletizes 50-pound bags, about 23 kg, places slip sheets and sends rejected bags to their station (FANUC, in Spanish, checked November 13, 2026).

Questions about stacking bags

How do you stack 25 kg bags?
They go interlocked, five per layer on a 1.20 x 1.00 m pallet, reversing the pattern on each layer. By hand, Mexico's NOM-036-1-STPS-2018 limits the load to 25 kg for men and 20 kg for women aged 18 to 45. When volume is high, the option is a bag palletizer robot.
How do you stack bags of cement?
On a sturdy pallet, interlocking each layer and staying under the height your floor and your rack can take. Because cement sheds dust, the cell needs a sealed tool and more frequent maintenance.
Can a robot palletize sacks?
Yes. The tool is different from the one for cases: a fork or claw gripper that cradles the bag from below, because vacuum does not hold well on woven polypropylene or porous paper. If your container is a small pouch, a pail or a jug, see that page.
Can a robot palletize bags of animal feed or pet food kibble?
Yes. A bag of animal feed, woven polypropylene or paper, gets flattened and lifted from below with forks, the same as a bag of flour or sugar. A laminated kibble bag is smoother: the gripper pressure is adjusted, the pattern is interlocked and slip sheets can go between layers. Small bags are palletized once they are in a bundle or a case.
How many bags fit on a pallet?
With 25 kg bags of about 60 x 40 cm, the usual is 5 per layer and 8 to 10 layers: 40 to 50 bags, between 1,000 and 1,250 kg of load. Check the maximum weight of your pallet and your rack.
What is automatic bag palletizing?
It means placing bags on a pallet with a machine, with no manual handling: a robot or a conventional palletizer picks each bag and sets it in the programmed pattern. With a robot, the same cell can handle several bag sizes by changing the program and the tool.

Send your bag weight and your bags per minute. We reply with a version and a price range.

Delivered in 12 weeks. Public price reference: US$120,000 (CSi) to US$550,000 (Kaufman), as of November 3, 2026.

Request a palletizer quote

Or call sales: +52 (444) 279 0953 · WhatsApp

  1. 1What you palletize
  2. 2At what speed
  3. 3How many lines
  4. 4Your pallet
  5. 5How many shifts
  6. 6Space and city