New or Used Block Machine for Iraq: What the Second-Hand Price Leaves Out
19 October 2026 · 7 min read
Quick answer
Four lines sit outside a second-hand block machine price: a mould cut to your drawing, a pallet fleet in the size the machine was built around, the fatigue already stored in the frame and vibration box, and the first mould trial, which runs on your slab. Check installed capacity, cycle time and pallet size against the nameplate. A unit that has been derated is a smaller machine in a larger frame.
New or used block machine for Iraq is a question that usually gets settled on the invoice, and the invoice is the wrong document. A second-hand press arrives as a frame, a hydraulic power pack, a control cabinet and whatever mould happens to be bolted to the table. Four cost lines sit outside that figure: a mould cut to your block drawing, a pallet fleet at the size the machine was designed around, the fatigue already stored in the frame and the vibration box, and the first mould trial, which runs on your slab with your aggregate and your operator.
What does the second-hand price leave out?
Four lines. The first two are physical: a mould cut to your block drawing, and a pallet fleet in the size your machine circuit uses. The third is structural: the load cycles a frame and a vibration box have already absorbed. The fourth is time: the commissioning and training that a new machine absorbs in the factory and a used machine hands to your yard. A seller can show you a running machine and still leave all four lines on your side of the table.
Moulds and pallets are consumables, not accessories
A mould is cut to a drawing. It carries the block height, the core shape, the wall thickness and the chamfer, and it is machined to the tolerance your block has to hold. A used machine usually arrives with the mould the previous owner was running, worn at the edges and set for a block size that may not be the one you sell. A 390 × 190 × 190 mm hollow block at 6 per mould and a 240 × 115 × 51 mm standard brick at 32 to 36 per mould do not share one body.
The pallet is the harder line to see, because it looks like part of the machine. On a QST1800 the pallet is 1,400 × 1,400 × 30 mm; on a QST1500 it is 1,350 × 1,150 × 30 mm; on a QST1200 it is 1,350 × 880 × 25 mm. The board is a consumable, and the fleet is sized by trips per shift and by the days a block stands in the yard. One layer is one pallet trip, and a full layer can carry 125 standard solid bricks or 18 standard hollow blocks.
Ask what the figure includes before you count the machine as complete: one mould or a set, and how many pallets, if any. Those two answers shape the deal more than the paint does.
How do you read fatigue in the frame and the vibration box?
A block machine is a fatigue machine. The head runs at 3,800 to 4,500 times per minute, and on the largest frame the vibration force is 280 kN. That load does not pass through the frame once. It passes through it millions of times, into the weld toes, the bolted joints and the bolt holes that locate the vibration box.
Look at three places. First, the weld toes where the vibration box meets the frame and where the legs meet the base: a crack there started as a hairline and has been breathing for a long time. Second, the bolt holes: a hole that has gone oval has been moving under load, and no torque setting brings it back round. Third, the rubber pads: a pad that has taken heat sets hard, and a hard pad sends force into the frame instead of damping it.
The nameplate is the other half of the check. A QST1800 carries 104 kW installed and a QST1500 carries 69.1 kW. If the motor on the unit in front of you is smaller than the nameplate figure, the machine has been running below rating and the frame has absorbed fewer cycles than its working hours suggest.
Spare parts: a discontinued model is the expensive one
Hydraulic valves and PLC modules are the two lines that decide whether a used machine can be kept running. Both are model specific, and neither can be reproduced in a local workshop. Our static presses work at 31.5 MPa with main cylinder bores from 450 mm to 720 mm, and a seal kit for one bore does not fit another.
Before you agree on a used unit, get the model, the serial number, a photo of the valve block and a photo of the PLC label. Then check that the valve and the module are still produced. If the model has been out of production for years, the repair path becomes a substitute manifold and a rewritten control sequence, which is engineering work rather than a parts order, and it lands on your schedule.
A machine with a healthy frame and an obsolete control cabinet is a frame with a schedule attached to it.
Commissioning happens on your yard
A new machine is tried in the factory: the mould is run, the cycle is set, blocks are broken and the mix is adjusted before the machine is packed. A used machine arrives with the previous owner's settings for the previous owner's aggregate. The first mould trial happens on your slab, with your sand, your cement and your water, and every block that fails that trial is scrap you paid for.
Budget the days, not the hours. The cycle has to come back to 15 to 25 s with a block that holds its height, the stacker has to be set to a stacking height under 1,400 mm, and the operator has to learn the fault alarms on a panel that may be in a language nobody on site reads. Training on a used machine is not a handover. It is a rebuild of the settings.
Which check comes first: how far has the machine been derated?
Before the welds, before the parts list, ask one question: has this machine been running at its rating? Three numbers answer it. Installed capacity against the nameplate figure. Cycle time against the 15 to 25 s the model is built for. Pallet size against the size the model was designed around.
If all three match the nameplate, the machine has been worked at rating, and you should expect the fatigue that goes with it: full cycles on the frame and a vibration box that has taken 280 kN for its whole life. If the numbers do not match, the machine has been derated. The frame may be in better condition, but the output you were promised was never the output it produced, and a smaller mould with a longer cycle cannot be turned back into nameplate capacity by a new set of settings.
This is the order that matters. Derating tells you what the machine is. The welds and the parts list tell you what it will cost to keep it that way.
What should you send before you compare two machines?
Send the same file for each unit: model and serial number, photos of the nameplate, the valve block, the PLC label, the mould and the pallet, plus close shots of the weld toes at the vibration box. Add the block sizes you actually sell, your shift pattern and the power available at your site.
With that file the two units can be put against one baseline: what each machine is rated to do, how far it has been derated, and which of the four cost lines still has to be paid. A used machine is not a cheaper machine until those four lines are counted. Until then it is an unpriced one.
Frequently asked questions
What does a used block machine price usually exclude?
It usually excludes the mould cut to your block drawing and the whole pallet fleet, since the board is a consumable and the previous owner keeps or sells his separately. It also leaves out the fatigue already in the frame, the spare parts for a model that may be out of production, and the commissioning and training days that a new machine absorbs in the factory before packing.
How can you tell if a used block machine frame is fatigued?
Check the weld toes where the vibration box meets the frame and where the legs meet the base, because a crack there starts as a hairline. Check whether the bolt holes at the vibration box have gone oval, which means the joint has been moving under load. Check the rubber pads for hardness, since a pad that has taken heat stops damping and sends force into the frame.
Which spare parts are hardest to source for a discontinued block machine?
Hydraulic valves and PLC modules. Both are specific to the model and neither can be reproduced in a local workshop, unlike a pin or a wear plate. If the valve body or the module is no longer produced, the repair becomes a substitute manifold plus a rewritten control sequence. Ask for the serial number, the valve block photo and the PLC label before agreeing on the unit.
Does a machine that ran below its rated capacity have less wear?
It has fewer load cycles on the frame, so the structure may be in better condition. The problem is output. A unit running a smaller motor and a longer cycle than the 15 to 25 s its model was built for cannot be tuned back to nameplate capacity. You would be buying a smaller machine inside a larger frame, and paying for the frame.
What information do you need to compare a used unit with a new one?
Send the model and serial number, photos of the nameplate, the valve block, the PLC label, the mould and the pallet, and close shots of the weld toes at the vibration box. Add the block sizes you sell, your shift pattern and the power at your site. With that we can state each machine's rating, how far it has been derated and what still has to be bought.
Want an engineering opinion on your project?
Tell us what you want to produce and which raw materials you have, and we will recommend the right machine.